![](media/image1.png)***LIVESTOCK***

***AND***

***POULTRY***

***SCIENCES***

***INSTITUTE***

***D I R E C T O R Y***

![](media/image2.png){width="3.223611111111111in"
height="1.0923611111111111in"}

***USDA, AGRICULTURAL RESEARCH SERVICE***

***10300 BALTIMORE AVENUE***

***BELTSVILLE, MARYLAND 20705-2350***

***(301)504-8431***

***(Revised January 1999******)***

***LIVESTOCK AND POULTRY SCIENCES INSTITUTE***

***BELTSVILLE AGRICULTURAL RESEARCH CENTER, BARC-EAST***

***BELTSVILLE, MARYLAND 20705-2350***

**INDEX**

**Animal Improvement Programs Laboratory 2**

**Gene Evaluation and Mapping Laboratory 4**

**Germplasm and Gamete Physiology Laboratory 6**

**Growth Biology Laboratory 8**

**Immunology and Disease Resistance Laboratory 11**

**Meat Science Research Laboratory 14**

**Nutrient Conservation and Metabolism Laboratory 15**

**Parasite Biology and Epidemiology Laboratory 17**

**Biosystematics and National Parasite Collection Unit 20**

**Research Animal Services Unit 21**

**Veterinary Services Unit 22**

**Administrative Unit 23**

**Postdoctoral and Visiting Scientists . 24**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**Dr. T. J. Sexton, Director**

Bldg. 200, Rm. 217, BARC-East

Beltsville, MD 20705

301/504-8431

FAX 301/504-8553

email: tsexton@lpsi.barc.usda.gov

**Mission**: The mission of the Livestock and Poultry Sciences Institute
is to conduct research to increase production efficiency and
profitability, and to improve the value and quality of livestock
products.

The Institute is comprised of 8 laboratories and 4 service units:

Animal Improvement Programs Laboratory

Gene Evaluation and Mapping Laboratory

Germplasm and Gamete Physiology Laboratory

Growth Biology Laboratory

Immunology and Disease Resistance Laboratory

Meat Science Research Laboratory

Nutrient Conservation and Metabolism Laboratory

Parasite Biology and Epidemiology Laboratory

Biosystematics and National Parasite Collection Unit

Research Animal Services Unit

Veterinary Services Unit

Administrative Unit

**ANIMAL IMPROVEMENT PROGRAMS LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8092**

**Mission:** The Animal Improvement Programs Laboratory conducts
research to discover, test, and implement improved genetic evaluation
techniques for economically important traits of dairy cattle and goats.
Research is directed at genetic improvement of efficiency of yield
traits (milk, fat, and protein) and nonyield traits that affect health,
vigor, and profitability (longevity, conformation, reproductive
efficiency, and mastitis resistance). Data are obtained through an
industry wide dairy production testing and record keeping system and
through breed registry societies. Genetic improvement is fostered
nationally and internationally through 1) distribution of evaluations
developed from these data, 2) technology transfer, and 3) collaboration
with industry cooperators and university researchers. Technical
coordination is provided for data standardization procedures,
international comparison of dairy populations, and cooperative projects
to improve evaluation systems in the United States and other countries.

+----------------------------+---+-------------------------------------+
| **Dr. H. Duane Norman**    |   | Coordinates the research effort to  |
|                            |   | improve genetic                     |
| Research Leader            |   |                                     |
|                            |   | evaluation of dairy animals,        |
| Supervisory Geneticist     |   | operation of USDA-DHIA evaluation   |
| (Animal)                   |   | systems, and policy with industry   |
|                            |   | cooperators. Supervises the editing |
| Bldg. 263, Room 102C,      |   | system for the national research    |
| BARC-East                  |   | data base.                          |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8660               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| dnorman@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Rex L. Powell**      |   | Investigates genetic evaluations    |
|                            |   | across countries, including         |
| Research Geneticist        |   | cooperation with the International  |
| (Animal)                   |   | Bull Evaluation Service and         |
|                            |   | analysis of accuracy of those       |
| Bldg. 263, Room 105,       |   | results. Investigates incorporation |
| BARC-East                  |   | of records with extreme deviations  |
|                            |   | into genetic evaluations.           |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8174               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| rpowell@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Paul M. VanRaden**   |   |                                     |
|                            |   |                                     |
| Research Geneticist        |   |                                     |
| (Animal)                   |   |                                     |
|                            |   |                                     |
| Bldg. 263, Room 104B,      |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-9438               |   |                                     |
|                            |   |                                     |
| ema                        |   |                                     |
| il:paul@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| Determines economic values |   |                                     |
| and procedures to evaluate |   |                                     |
| health and fitness traits. |   |                                     |
| Develops strategies to     |   |                                     |
| include data from new test |   |                                     |
| plans in genetic           |   |                                     |
| evaluations. Provides new  |   |                                     |
| approaches to monitor and  |   |                                     |
| control inbreeding.        |   |                                     |
| Derives improved           |   |                                     |
| procedures to analyze      |   |                                     |
| large data sets.           |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Curtis Van Tassell** |   | Works jointly with the Gene         |
|                            |   | Evaluation and Mapping Laboratory.  |
| Research Geneticist        |   | Develops and implements methods to  |
| (Animal)                   |   | identify and estimate individual    |
|                            |   | gene effects using genetic marker   |
| Bldg. 263, Rm. 105B,       |   | and genetic evaluation information  |
| BARC-East                  |   | in large dairy sire families.       |
|                            |   | Estimates level of dominance        |
| 10300 Baltimore Avenue     |   | genetic variance for yield traits.  |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-9271               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| curtvt@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. George R. Wiggans**  |   | Develops a test-day model to        |
|                            |   | improve genetic evaluations of      |
| Research Geneticist        |   | yield traits. Conducts genetic      |
| (Animal)                   |   | evaluation of dairy goats. Advises  |
|                            |   | on procedures to access the         |
| Bldg. 263, Room 105A,      |   | national data base and on           |
| BARC-East                  |   | distribution of evaluation          |
|                            |   | information.                        |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8407               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| wiggans@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

**GENE EVALUATION AND MAPPING LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8414**

**[Mission:]{.underline}** To develop knowledge of the structure and
function of the genomes of livestock and poultry in order to improve
their productive performance by improved efficiency of genetic selection
and by insertion of new genetic material. Research in the laboratory
utilizes the methods of molecular biology, genetic manipulation of
embryos, and cell culture to study the expression of genes in
physiological systems that regulate productivity. Transgenic animals are
a primary tool for studying genes related to growth, disease resistance,
and productivity of the mammary gland. Mapping techniques will be
utilized to develop increased knowledge of the structure of the genome
and to develop technology to select animals based on true genetic merit.

+----------------------------+---+-------------------------------------+
| **Dr. Vernon G. Pursel**   |   | Transfer of genes into swine with   |
|                            |   | potential to alter growth           |
| Research Leader            |   | performance, milk composition, or   |
|                            |   | disease susceptibility. Investigate |
| Supv. Research             |   | culture, manipulation, and          |
| Physiologist               |   | cryopreservation of pig gametes,    |
|                            |   | embryos, and embryonic stem cells.  |
| Bldg. 200, Rm. 6,          |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8114               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| vpursel@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Melissa S. Ashwell** |   | Map genes related to reproductive   |
|                            |   | traits in dairy cattle and identify |
| Research Geneticist        |   | molecular markers for economic      |
|                            |   | trait loci.                         |
| Bldg. 200, Rm. 9,          |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8543               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| mschus@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. A. V. Capuco**       |   | Determine endocrine factors which   |
|                            |   | are critical to growth and          |
| Research Physiologist      |   | development of bovine mammary gland |
|                            |   | for maximum milk yield. Find ways   |
| Bldg. 200, Rm. 14,         |   | to modify endocrine events during   |
| BARC-East                  |   | growth, pregnancy, and lactation to |
|                            |   | increase number and activity of     |
| 10300 Baltimore Avenue     |   | mammary gland secretory cells.      |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8672               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| acapuco@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Kimiaki Maruyama**   |   | Elucidate mechanisms regulating     |
|                            |   | growth and development of turkeys.  |
| Research Physiologist      |   | Investigate the expression of genes |
|                            |   | encoding myofibrillar proteins and  |
| Bldg. 200, Rm. 121,        |   | myogenic determination factors.     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-9467               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| kmaru@lpsi.barc.usda.gov   |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Tad S. Sonstegard**  |   | Develop highly polymorphic markers  |
|                            |   | for chromosomal regions of the      |
| Research Geneticist        |   | bovine genome identified to contain |
|                            |   | economic trail loci (ETL). Map      |
| Bldg. 200, R. 101B,        |   | positional candidates genes for     |
| BARC-East                  |   | ETLs that also effectively         |
|                            |   | integrate the linkage, physical,    |
| 10300 Baltimore Avenue     |   | and comparative maps of animal      |
|                            |   | chromosomes.                        |
| Beltsville, MD 20-705-2350 |   |                                     |
|                            |   |                                     |
| 301/504-8416               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| tads@lpsi.barc.usda.gov    |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Neil C. Talbot**     |   | Develop methods to isolate and      |
|                            |   | culture totipotent cells from       |
| Research Animal Scientist  |   | embryos of cows, pigs, and sheep.   |
|                            |   |                                     |
| Bldg. 200, Rm. 13,         |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-5307               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| ntalbot@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Robert J. Wall**     |   | Alter the phenotype of cattle,      |
|                            |   | sheep, and swine by introduction of |
| Research Physiologist      |   | foreign genes into early embryos.   |
|                            |   | Determine factors which limit       |
| Bldg. 200, Rm. 16,         |   | efficiency of producing transgenic  |
| BARC-East                  |   | animals.                            |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8362               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| bobwall@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+

**Dr. Kevin Wells**

Research Geneticist

Bldg. 211, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8800

email: **kwells@lpsi.barc.usda.gov**

To develop an effective inducible system to precisely regulate
expression of a transgene in transgenic animals.

**GERMPLASM AND GAMETE PHYSIOLOGY LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MD 20705-2350**

**TEL 301/504-8545 FAX 301/504-5123**

**Mission**: The research mission of GGPL is to develop new knowledge
and determine the means to improve the genetic, reproductive and
productive efficiency of livestock and turkeys through fundamental
research on germplasm and gametes. Studies are designed to: develop and
improve methods for the short-term preservation and cryopreservation of
swine and turkey spermatozoa in vitro; use the study of cellular,
molecular and hormonal mechanisms to improve egg production in turkeys;
improve fertilization rate through the study of follicular and occyte
development in swine; identify factors that limit embryonic survival and
fertility in the turkey and of sex predetermined embryos of livestock;
determine mechanisms and developmental factors that will achieve
effective cryopreservation of swine embryos; develop methods of
effectively assessing sperm fertilizing capacity in vitro and develop
and improve methods for gender preselection through flow cytometric
separation of X and Y sperm based on DNA content. Give operational
leadership to USDA-ARS Animal Hormone Program and the National Animal
Germplasm Program Gene Bank.

+----------------------------+---+-------------------------------------+
| **Dr. Lawrence A.          |   | Sex preselection in mammals through |
| Johnson**                  |   | separation of X/Y sperm by DNA;     |
|                            |   | semen preservation and AI in swine. |
| Research Leader            |   |                                     |
|                            |   |                                     |
| Supv. Research             |   |                                     |
| Physiologist               |   |                                     |
|                            |   |                                     |
| Bldg. 200, Rm. 124,        |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8009               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| l                          |   |                                     |
| ajohnsn@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| Dr. Murray R. Bakst        |   | Determine factors regulating turkey |
|                            |   | oocyte maturation and factors       |
| Research Physiologist      |   | regulating fertilization, and       |
|                            |   | embryo development. AI of turkey    |
| Bldg. 262, Rm. 107B,       |   | semen.                              |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8795               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| murray@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. John R. Dobrinsky**  |   | Cryopreservation of embryos in      |
|                            |   | swine and other animals. Use of     |
| Research Physiologist      |   | vitrification to preserve embryos.  |
|                            |   |                                     |
| Bldg. 200, Rm. 22,         |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8134               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| bigjohn@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| Dr. Ann M. Donoghue        |   | Preservation of turkey semen        |
|                            |   | through liquid and cryogenic        |
| Research Physiologist      |   | storage. Sperm quality assessment,  |
|                            |   | physiology, and fertilization       |
| Bldg. 200, Rm. 120,        |   | events.                             |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8580               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| annie@lpsi.barc.usda.gov   |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. H. David Guthrie**   |   | Reproductive physiology and         |
|                            |   | endocrinology. Investigate follicle |
| Research Physiologist      |   | maturation and expression of        |
|                            |   | ovarian genes, and develop methods  |
| Bldg. 200, Rm. 4,          |   | to control parturition in sows.     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-9020               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| dave@lpsi.barc.usda.gov    |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. John A. Proudman**   |   | Physiology of growth and            |
|                            |   | reproduction of the turkey. Purify  |
| Research Physiologist      |   | and characterize proteins important |
|                            |   | in the control of growth and        |
| Bldg. 262, Rm.305B,        |   | reproduction. Identify endocrine    |
| BARC-East                  |   | changes which limit egg production  |
|                            |   | in turkeys.                         |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8094               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| johnp@lpsi.barc.usda.gov   |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

**GROWTH BIOLOGY LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8623**

**Mission**: The mission of the Growth Biology Laboratory is to: (1)
examine pre- and post-translational genetic determinants that influence
nutrient utilization for lean tissue deposition by livestock; (2)
determine practical approaches to implement near-market technologies
affecting fat:protein ratio into livestock production agriculture; (3)
optimize and validate nondestructive techniques for the prediction of
live animal composition; and (4) assess nutrient/management variables
and metabolism modifiers on target animal health, well-being, product
quality and safety.

+----------------------------+---+-------------------------------------+
| **Dr. John P. McMurtry**   |   | **Biological action of insulin-like |
|                            |   | growth factors and other peptide    |
| Acting Research Leader     |   | hormones during avian embryogenesis |
|                            |   | and post-hatch growth. Peripheral   |
| Research Animal Scientist  |   | control of feed intake. Development |
| (Poultry)                  |   | of avian peptide hormone assays.**  |
|                            |   |                                     |
| Bldg. 201, Rm. 5,          |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8803/8857          |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| m                          |   |                                     |
| cmurtry@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Thomas J. Caperna**  |   | Mechanisms of peptide hormone and   |
|                            |   | growth factor action in swine.      |
| Research Biologist (Swine) |   | Characterization of protein hormone |
|                            |   | binding proteins in tissues.        |
| Bldg. 200, Rm. 202,        |   | Develop methods to isolate and      |
| BARC-East                  |   | culture hepatic cells.              |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8506               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| caperna@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Theodore H.          |   |                                     |
| Elsasser**                 |   |                                     |
|                            |   |                                     |
| Research Animal Scientist  |   |                                     |
|                            |   |                                     |
| (Beef cattle)              |   |                                     |
|                            |   |                                     |
| Bldg. 200, Rm. 120,        |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| e                          |   |                                     |
| lsasser@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| Biochemical and            |   | Develop and validate image analysis |
| physiological mechanisms   |   | for direct, nondestructive,         |
| of action of growth        |   | determination of body composition   |
| promoters and growth       |   | in swine. Nutrient factors          |
| related hormones affecting |   | affecting anabolic actions of       |
| the production of          |   | beta-adrenergic agonists.           |
| livestock.**Dr. Alva D.    |   |                                     |
| Mitchell**                 |   |                                     |
|                            |   |                                     |
| Research Animal Scientist  |   |                                     |
| (Swine)                    |   |                                     |
|                            |   |                                     |
| Bldg. 200, Rm. 205A,       |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8868               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| m                          |   |                                     |
| itchell@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Timothy Ramsey**     |   | Manipulation of feedback mechanisms |
|                            |   | for regulation of feeding behavior  |
| Research Physiologist      |   | in livestock. Endocrine and         |
|                            |   | paracrine regulation of adipose     |
| Bldg. 200, Rm. 207,        |   | tissue gene expression in swine.    |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-5958               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| tramsay@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Mark P. Richards**   |   | Peripheral control of feed intake.  |
|                            |   | Development of molecular techniques |
| Research Animal Scientist  |   | to assess tissue gene expression.   |
| (Poultry)                  |   | Role of leptin in avian             |
|                            |   | embryogenesis.                      |
| Bldg. 200, Rm. 206A,       |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8892               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| r                          |   |                                     |
| ichards@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Robert W.            |   | Neuroendocrine control of appetite  |
| Rosebrough**               |   | and energy metabolism in poultry.   |
|                            |   | Regulation of lipid metabolism.     |
| Research Animal Scientist  |   |                                     |
| (Poultry)                  |   |                                     |
|                            |   |                                     |
| Bldg. 200, Rm. 212,        |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8866               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| rosebro@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Norman C. Steele**   |   | Interaction of nutrient and         |
|                            |   | management factors on anabolic      |
| Research Animal            |   | effects of growth hormone           |
|                            |   | administration in swine. Factors    |
| Scientist (Swine)          |   | affecting protein synthesis and     |
|                            |   | degradation.                        |
| Bldg. 200, Rm. 101B,       |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-7191               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| steele@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

**IMMUNOLOGY AND DISEASE RESISTANCE LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-5306**

**Mission:** The mission of the Management Unit is to enhance animal
health and to reduce the economic impact of animal parasitic and
mastitic disease on the safety and health of consumers, and of parasite
and mastitis associated production losses to the industry. The goals of
the MU are to improve overall animal health, evaluate factors
controlling the immunobiology of the host response to parasitic and
mastitic diseases; protect consumers from zoonotic diseases in food or
water caused by parasitic diseases; assess cytokines and other immune
effector on neonatal immune system development or for prevention and
control of parasitism and mastitis in farm animals; define mechanisms
through which the parasite or bacterium modifies host physiology and
controls pathogen induced stress; identify and map genes with useful
immunologic properties or with effects on parasitic and mastitic disease
resistance; develop unique immunologic and molecular diagnostic tools to
identify infected animals and parasites in environmental samples; and
develop methods that minimize production losses due to parasites and
mastitis. This research will lead to improved animal health, and to
reduced drug usage resulting in a lessening of drug resistant
microorganisms and of drug residues in meat, milk and the environment,
thus enhancing the sustainability of American agriculture.

**Dr. Joan K. Lunney**

Research Leader

Supv. Research Immunogeneticist

Bldg. 1040, Rm. 105, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8201 or 9368

email: jlunney@lpsi.barc.usda.gov

Investigates immunologic and genetic factors that regulate swine
responses to parasite infections in particular toxoplasmosis and
trichinellosis. Determines effectiveness of vaccination for
toxoplasmosis and defines immune factors which result in protective
responses. Develops monoclonal antibodies and PCR reagents for swine
cell-surface antigens and cytokines. Maps genes which regulate parasitic
disease responses.

**Dr. Ronald Fayer**

Zoologist

Bldg. 1040, Rm. 2, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8750

email: rfayer@lpsi.barc.usda.gov

To elucidate he basic biology of Cryptosporidium species infectious for
food animals and humans. To determine methods of detection, routes of
transmission, methods of immunization and disinfection, and develop
strategies for prevention and control.

**Dr. Louis C. Gasbarre**

Microbiologist

Bldg. 1002, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8509

email: lgasbarr@lpsi.barc.usda.gov

Defines the genetic basis of immune responses of cattle to parasitic
infections; characterizes cellular immune responses of cattle with
special emphasis on the role of cytokines; develops management programs
that use host immunity to control parasite infection.

**Dr. A. J. Guidry**

Research Dairy Scientist

Bldg. 173, Rm. 100, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8285

email:aguidry@lpsi.barc.usda.gov

Develop means of preventing [Staphylococcus]{.underline}
[aureus]{.underline} adherence to bovine mammary epithelial cells.
Develop vaccines against [S]{.underline}. [aureus]{.underline}.
Determine the feasibility of producing transgenic animals that are
resistant to mastitis.

**Dr. James Higgins**

Microbiologist

Bldg. 1040, Rm. 202, BARC-East

Beltsville, MD 20705-2350

301/504-6443

email: jhiggins@lpsi.barc.usda.gov

Conducts applied research on sample preparation techniques, and
molecular diagnostic assays, for the detection and identification of
parasitic pathogens of livestock.

**Dr. Mark C. Jenkins**

Microbiologist

Bldg. 1040, Rm. 101, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8054

email:mjenkins@lpsi.barc.usda.gov

Conducts basic and applied studies on protozoan diseases of food
animals. Employs molecular and immunological techniques to develop
diagnostic probes for identifying these parasites and for generating
vaccines for combating coccidiosis of poultry and cryptosporidiosis and
neosporosis of cattle.

**Dr. Hyun S. Lillehoj**

Microbiologist

Bldg. 1043, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8771

email: hlilleho@lpsi.barc.usda.gov

Investigates molecular and cellular mechanisms involved in genetic
control of protective immunity to avian coccidia to develop
immunological control strategies for avian coccidiosis. Develops
molecular and cellular probes to assess cell-mediated immunity in
chickens following recombinant coccidial antigen vaccination and natural
infection. Studies the role of various T-lymphocyte subsets and
cytokines in the development of protective anti-coccidial immunity.
Identify microsatellite markers associated with

disease resistance/susceptibility to avian coccidiosis.

**Dr. M. J. Paape**

Research Dairy Scientist

Bldg. 173, Rm. 103, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8302

email: mpaape@lpsi.barc.usda.gov

Determination of events and substances which mobilize polymorphonuclear
leukocytes to defend against mastitis infection. Find ways to stimulate
this defense to more effectively combat infections.

**Dr. Joseph F. Urban, Jr.**

Supv. Microbiologist

Bldg. 1040, Rm. 5, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8765

email: jurban@lpsi.barc.usda.gov

Studies parasitic diseases of swine, especially aspects of protective
immunity, vaccine development, cytokine regulation of immunity and
inflammation, and intestinal mucosal responses to infection.
Investigates rodent models of immunity to parasites as a paradigm for
responses of livestock.

**Dr. Dante S. Zarlenga**

Molecular Biologist

Bldg. 1180, Rm. 100, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8754

email: dzarleng@lpsi.barc.usda.gov

Conducts research in the general area of molecular parasitology with a
concentration on helminths of veterinary importance. Repetitive DNA
sequences as well as specific gene sequences encoding antigens and are
identified that can assist in diagnosis, protection and classification
of parasites and parasitic infections. Research on the effects of
parasite infection on host cytokine expression is also studied.

**MEAT SCIENCE RESEARCH LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8438**

**Mission**: To conduct basic and applied research on beef, pork, lamb,
and other animal products to enhance their quality and safety. To
develop technology for evaluating, maintaining, and improving the
quality of meat and meat products. To establish the nutritional
composition of meat and meat products and to establish pre- and
post-slaughter practices that enhance both the nutritional composition
and quality. To develop information on the accumulation of residues of
drugs and pesticides in meat and other animal products and to develop
means for analyzing for such chemical residues.

+----------------------------+---+-------------------------------------+
| **Dr. Morse B. Solomon**   |   | Develop hydrodynamic pressure       |
|                            |   | technology and other newly emerging |
| Research Leader            |   | technologies that will improve the  |
|                            |   | quality and food safety of meat     |
| Supv. Res. Food            |   | products. Develop companion         |
| Technologist               |   | preservation, processing and        |
|                            |   | cooking procedures necessary to     |
| Bldg. 201, Rm. 105A,       |   | fully achieve the value-added       |
| BARC-East                  |   | capabilities of hydrodynamic        |
|                            |   | pressure technology. Regulation of  |
| 10300 Baltimore Avenue     |   | growth and development of different |
|                            |   | biological slaughter animals for    |
| Beltsville, MD 20705-2350  |   | producing high lean/low fat meat,   |
|                            |   | especially in relation to improving |
| 301/504-8463               |   | meat quality and compositional      |
|                            |   | factors affecting the tenderness of |
| email:                     |   | meat.                               |
| m                          |   |                                     |
| solomon@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Brad W. Berry**      |   | Sensory, cooking and instrumental   |
|                            |   | texture properties of meat          |
| Research Food Technologist |   | products, especially those          |
|                            |   | subjected to the Hydrodyne process. |
| Bldg. 201, Rm. 101,        |   | Provides information to federal     |
| BARC-East                  |   | action-regulatory agencies          |
|                            |   | regarding cooked color, product     |
| 10300 Baltimore Avenue     |   | specifications and cooking          |
|                            |   | methodology.                        |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8994               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| bberry@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Art M. Spanier**     |   | Study the structure-function        |
|                            |   | relationship of meat chemical       |
| Research Chemist           |   | components (predominantly proteins, |
|                            |   | peptides, and amino acids) as they  |
| Bldg. 201, Rm. 204,        |   | relate to changes in meat quality   |
| BARC-East                  |   | during processing (postmortem       |
|                            |   | aging) and other postmortem         |
| 10300 Baltimore Avenue     |   | handling technologies (such as      |
|                            |   | hydrodynamic pressure). Objective   |
| Beltsville, MD 20705-2350  |   | is to understand the factors        |
|                            |   | affecting meat quality and use this |
| 301/504-8989               |   | information to develop rapid        |
|                            |   | screening methods for assessing     |
| **email:                   |   | meat quality, as well as to develop |
| asp                        |   | high quality meat products.         |
| anier@lpsi.barc.usda.gov** |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

**NUTRIENT CONSERVATION AND METABOLISM LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8162**

**Mission:** The mission of the Nutrient Conservation and Metabolism
Laboratory is to increase the conservation of nutrients from production
of milk and meat through a better understanding of ruminant metabolism.
Scientists conduct research to: improve energy and protein supply from
digestion by determining relationships between feed composition and
microbial fermentation; maximize conservation of absorbed energy and
protein by the visceral tissues, including the gut and liver, and the
whole animal; and alter nutrient excretion for improved dairy manure
management.

**Dr. Theron S. Rumsey**

Acting Research Leader

Research Animal Scientist

Bldg. 200, Rm. 102, BARC-East

Beltsville, MD 20705-2350

301/504-8267

email: trumsey@lpsi.barc.usda.gov

Improve efficiency of protein production and energy use through
endocrine manipulation of metabolism specifically as it relates to the
use of estrogenic growth promoters and modulation of the thyroid axis.

**Dr. Ransom L. Baldwin, VI**

Research Animal Scientist

Bldg. 200, Rm. 108, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8964/8620

email: rbaldwin@lpsi.barc.usda.gov

Quantitative assessment of ruminant gut tissue energy metabolism. Tissue
energy metabolism and mechanisms of cell growth and differentiation as
affected by whole animal nutritional status and physiological state.

**Dr. Alan M. Lefcourt**

Biomedical Engineer

Bldg. 200, Rm. 101A, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8451

email: alefcour@lpsi.barc.usda.gov

Investigation of nutrient flow into animal waste and management of
animal waste to identify and reduce nutrient losses.

**Dr. Kyle R. McLeod**

Research Animal Scientist

Bldg. 162, Rm. 211, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20750-2350

301/504-8604

email: kmcleod@lpsi.barc.usda.gov

Visceral energy dynamics and interconnection with the hormonal plexus
through the quantitative determination of nutrient flux across
splanchnic organs.

+---------------------------+-----------+------------------------------+
| **Dr. James B. Reeves,    |           | Improvement of methods for   |
| III**                     |           | determining the composition  |
|                           |           | and value of dairy manure    |
| Research Chemist          |           | with respect to nitrogen     |
|                           |           | content and use as           |
| Bldg. 200, Rm. 218,       |           | fertilizer. Improvement of   |
| BARC-East                 |           | methods for determining      |
|                           |           | composition and              |
| 10300 Baltimore Avenue    |           | digestibility of ruminant    |
|                           |           | feedstuffs.                  |
| Beltsville, MD 20705-2350 |           |                              |
|                           |           |                              |
| 301/504-8294/7192         |           |                              |
|                           |           |                              |
| email:                    |           |                              |
| j                         |           |                              |
| reeves@lpsi.barc.usda.gov |           |                              |
+---------------------------+-----------+------------------------------+
|                           |           |                              |
+---------------------------+-----------+------------------------------+

**PARASITE BIOLOGY AND EPIDEMIOLOGY LABORATORY**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-5306**

**Mission**: The mission of the Parasite Biology and Epidemiology
Laboratory is to reduce the economic cost of parasitism in livestock and
poultry and to reduce the risk of transmission of parasite zoonoses to
humans. Emphasis is placed on developing integrated control programs for
important parasitic diseases. Research includes basic and applied
studies on (1) mechanisms of parasite transmission, the infection
process, parasite development and parasite-host interactions; (2) the
development of novel methods for parasite control such as parasite
vaccines and non-chemical anti-parasitics; (3) the diagnosis and control
of livestock parasites transmissible to humans; and (4) control of tick
populations transmitting Lyme disease..

+----------------------------+---+-------------------------------------+
| **Dr. H. Ray Gamble**      |   | Studies the biology and             |
|                            |   | epidemiology of zoonotic parasites  |
| Research Leader            |   | of swine and the goal of defining   |
|                            |   | production systems which reduce the |
| Supervisory Zoologist      |   | risk of animal infection; develops  |
|                            |   | tools to detect zoonotic parasite   |
| Bldg. 1040, BARC-East      |   | infection in swine; evaluates       |
|                            |   | postharvest processes which         |
| 10300 Baltimore Avenue     |   | inactivate zoonotic parasites in    |
|                            |   | swine.                              |
| Baltimore, MD 20705-2350   |   |                                     |
|                            |   |                                     |
| 301/504-8300               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| rgamble@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Patricia C. Allen**  |   | Studies biochemical, physiological, |
|                            |   | and immunological mechanisms for    |
| Research Chemist           |   | coccidia-induced metabolic changes  |
|                            |   | in avian tissues which lead to      |
| Bldg. 1043, BARC-East      |   | nutrient malabsorption and reduced  |
|                            |   | growth and weight gain.             |
| 10300 Baltimore Avenue     |   | Investigates dietary modulations of |
|                            |   | coccidia infections. Develops       |
| Beltsville, MD 20705-2350  |   | methods for biological control of   |
|                            |   | the black-legged tick, vector of    |
| 301/504-8772               |   | Lyme disease.                       |
|                            |   |                                     |
| email:                     |   |                                     |
| pallen@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+----------------------------+---+-------------------------------------+
| **Dr. Patricia C.          |   |                                     |
| Augustine**                |   |                                     |
|                            |   |                                     |
| Microbiologist             |   |                                     |
|                            |   |                                     |
| Bldg. 1100, BARC-East      |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8428               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| p                          |   |                                     |
| augusti@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| Investigates mechanisms of |   | Investigates methods of suppressing |
| cell invasion by           |   | populations of the black-legged     |
| sporozoites of avian       |   | tick (deer tick), vector of the     |
| coccidia. Studies effects  |   | pathogen causing Lyme disease.      |
| of anticoccidial drugs and |   | Studies host-finding behavior and   |
| natural products on        |   | ecology of the black-legged tick,   |
| coccidiosis and turkey     |   | as they relate to tick control.     |
| coccidia. Assesses impact  |   |                                     |
| of prior or concurrent     |   |                                     |
| infection on the behavior  |   |                                     |
| of the coccidia. Conducts  |   |                                     |
| basic research on          |   |                                     |
| Neospora.**Dr. John F.     |   |                                     |
| Carroll**                  |   |                                     |
|                            |   |                                     |
| Research Entomologist      |   |                                     |
|                            |   |                                     |
| Bldg. 1040, BARC-East      |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/ 504-9017              |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| j                          |   |                                     |
| carroll@lpsi.barc.usda.gov |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Harry D. Danforth**  |   | Studies immunity to and control of  |
|                            |   | avian coccidiosis. Initiates        |
| Microbiologist             |   | strategies to improve efficiency of |
|                            |   | live oocyst vaccines. Determines    |
| Bldg. 1100, BARC-East      |   | degree of anticoccidial efficacy    |
|                            |   | against field isolates of coccidia. |
| 10300 Baltimore Avenue     |   | Isolates and characterizes          |
|                            |   | coccidial antigens and evaluates    |
| Beltsville, MD 20705-2350  |   | their potential for use in          |
|                            |   | vaccines. Uses hybridoma antibodies |
| 301/504-8427               |   | and electron microscopy to          |
|                            |   | determine the interaction of        |
| email:                     |   | coccidial antigens with the host    |
| h                          |   | immune system. Evaluates natural    |
| danfort@lpsi.barc.usda.gov |   | products for control of avian       |
|                            |   | coccidiosis.                        |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+
| **Dr. Jitender P. Dubey**  |   | Develops procedures to render meat  |
|                            |   | and meat products safe from         |
| Microbiologist             |   | [Toxoplasma]{.underline}-infection  |
|                            |   | through diagnosis, epidemiology and |
| Bldg. 1001, BARC-East      |   | on-farm control programs. Develops  |
|                            |   | a vaccine to prevent                |
| 10300 Baltimore Avenue     |   | [Toxoplasma]{.underline}-induced    |
|                            |   | abortion in livestock. Develops     |
| Beltsville, MD 20705-2350  |   | methods for the diagnosis and       |
|                            |   | control of [Neospora]{.underline}   |
| 301/504-8128               |   | in domestic animals.                |
|                            |   |                                     |
| email:                     |   |                                     |
| jdubey@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+
|                            |   |                                     |
+----------------------------+---+-------------------------------------+

+-----------------------------+---+-------------------------------------+
| **Dr. Raymond H. Fetterer** |   |                                     |
|                             |   |                                     |
| Zoologist                   |   |                                     |
|                             |   |                                     |
| Bldg. 1040, Rm. 206,        |   |                                     |
| BARC-East                   |   |                                     |
|                             |   |                                     |
| 10300 Baltimore Avenue      |   |                                     |
|                             |   |                                     |
| Beltsville, MD 20705-2350   |   |                                     |
|                             |   |                                     |
| 301/504-8762                |   |                                     |
|                             |   |                                     |
| email:                      |   |                                     |
| rfettere@lpsi.barc.usda.gov |   |                                     |
+-----------------------------+---+-------------------------------------+
|                             |   |                                     |
+-----------------------------+---+-------------------------------------+
| Conducts research on        |   | Conducts research on the molecular  |
| parasite physiology and     |   | genetics of parasites of food       |
| biochemistry, particularly  |   | animals using various biochemical   |
| related to enzymes as       |   | methods including recombinant DNA   |
| targets for novel controls. |   | techniques to identify and classify |
| Studies the impact of       |   | parasites and to develop diagnostic |
| coccidia infections in      |   | probes. Develops methods for the    |
| chickens on muscle          |   | biological control of the           |
| metabolism in order to      |   | black-legged tick, vector of Lyme   |
| develop new methods for     |   | disease.                            |
| assessing impact of         |   |                                     |
| treatments.                 |   |                                     |
|                             |   |                                     |
| **Dr. Dolores E. Hill**     |   |                                     |
|                             |   |                                     |
| Research Parasitologist     |   |                                     |
|                             |   |                                     |
| Bldg. 1040, BARC-East       |   |                                     |
|                             |   |                                     |
| 10300 Baltimore Avenue      |   |                                     |
|                             |   |                                     |
| Beltsville, MD 20705-2350   |   |                                     |
|                             |   |                                     |
| 301/504-8770                |   |                                     |
|                             |   |                                     |
| email:                      |   |                                     |
| dhill@lpsi.barc.usda.gov    |   |                                     |
+-----------------------------+---+-------------------------------------+
|                             |   |                                     |
+-----------------------------+---+-------------------------------------+
| **Ms. Marcia L. Rhoads**    |   | Studies biochemical, immunological  |
|                             |   | and physiological functions, and    |
| Research Chemist            |   | developmental regulation of         |
|                             |   | cuticular and secretory components  |
| Bldg. 1040, Rm. 204,        |   | of helminth parasites; purifies and |
| BARC-East                   |   | characterizes enzymes and enzyme    |
|                             |   | inhibitors; isolates antigens for   |
| 10300 Baltimore Avenue      |   | immunization and diagnostic         |
|                             |   | purposes.                           |
| Beltsville, MD 20705-2350   |   |                                     |
|                             |   |                                     |
| 301/504-8761                |   |                                     |
|                             |   |                                     |
| email:                      |   |                                     |
| mrhoads@lpsi.barc.usda.gov  |   |                                     |
+-----------------------------+---+-------------------------------------+
|                             |   |                                     |
+-----------------------------+---+-------------------------------------+

**BIOSYSTEMATIC AND NATIONAL PARASITE COLLECTION UNIT**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8979**

**Mission**: Develop new information on the identification,
classification and distribution of parasites of animals, especially
those of veterinary and medical importance, applying modern systematics
methodology and theory to the analysis of comparative morphological,
biochemical and molecular data. The U.S. National parasite Collection is
accumulated and maintained to support the research of the Laboratory and
serves as a primary resource for biodiversity research nationally and
internationally.

**Dr. J. Ralph Lichtenfels**

Research Leader

Supv. Zoologist

Bldg. 1180, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8444

email: rlichten@lpsi.barc.usda.gov

**Dr. Eric P. Hoberg**

Zoologist

Bldg. 1180, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8588

email: ehoberg@lpsi.barc.usda.gov

Provides leadership for the Laboratory. Conducts research on the
systematics and identification of nematode parasites of animals. Curates
National Parasite Collection.

Conducts research on the systematics and classification of helminth
parasites of animals. Obtains and prepares specimens for DNA
systematics. Provides leadership in data analysis and for biodiversity
issues.

**RESEARCH ANIMAL SERVICES UNIT**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8746**

**Mission**: This unit provides technical expertise and animal care
services for all experimental animals which include cattle, swine,
sheep, poultry and laboratory animals.

+----------------------------+---+-------------------------------------+
| **Mr. Keith Hummel,        |   | Manages the acquisition,            |
| Manager**                  |   | assignment, day-to-day care and     |
|                            |   | disposition of the Beltsville       |
| Research Animal Services   |   | Agricultural Research Center\'s     |
|                            |   | research animal herds and flocks,   |
| Bldg. 177C, BARC-East      |   | including the efficient use of      |
|                            |   | personnel, funding supplies,        |
| 10300 Baltimore Avenue     |   | equipment, facilities, property,    |
|                            |   | and other related resources.        |
| Beltsville, MD 20705-2350  |   | Directs and oversees the            |
|                            |   | implementation of animal and flock  |
| 301/504-9243               |   | health care objectives, projects    |
|                            |   | the programs identified by the      |
| email:                     |   | Beltsville Agricultural Research    |
| khummel@lpsi.barc.usda.gov |   | Center Animal Health Care           |
|                            |   | Committees and the Veterinary       |
|                            |   | Services staff. Maintains a         |
|                            |   | population of disease-free animals  |
|                            |   | for research purposes.              |
+----------------------------+---+-------------------------------------+

**VETERINARY SERVICES UNIT**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8746**

**Mission**: This unit is responsible for care and welfare of all
experimental animals at the Beltsville Agricultural Research Center and
provides program guidance for health, quarantine, and other regulations.

+----------------------------+---+-------------------------------------+
| **Dr. Ben Stroud**         |   | Provides program support to         |
|                            |   | scientists conducting studies with  |
| Veterinary Medical Officer |   | or involving all species of animals |
|                            |   | by diagnosis of pathological        |
| Bldg. 177C, BARC-East      |   | conditions, plans and initiates     |
|                            |   | therapy, develops and carries out   |
| 10300 Baltimore Avenue     |   | health programs, performs routine   |
|                            |   | and experimental surgery as needed  |
| Beltsville, MD 20705-2350  |   | or requested, and provides          |
|                            |   | reproductive and obstetrical care.  |
| 301/504-9081 or 9243       |   | Administers Federal and State       |
|                            |   | regulations related to the          |
| email:                     |   | purchase, sale, and transport of    |
| bstroud@lpsi.barc.usda.gov |   | domestic animals; carries out the   |
|                            |   | federal and State testing for herd  |
|                            |   | certification; carries out          |
|                            |   | mandatory regulations regarding     |
|                            |   | laboratory animals covered under    |
|                            |   | Public Law 89-544.                  |
+----------------------------+---+-------------------------------------+

**ADMINISTRATIVE UNIT**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20705-2350**

**FAX 301/504-8696**

**Mission**: Provides administrative support services to LPSI management
units.

+----------------------------+---+-------------------------------------+
| **Ms. Kathy vant Hoff,    |   | This unit is responsible for the    |
| Management**               |   | budget, accounting, and contracting |
|                            |   | activities for LPSI.                |
| **Analyst**                |   |                                     |
|                            |   |                                     |
| Bldg. 307, Rm. 130,        |   |                                     |
| BARC-East                  |   |                                     |
|                            |   |                                     |
| 10300 Baltimore Avenue     |   |                                     |
|                            |   |                                     |
| Beltsville, MD 20705-2350  |   |                                     |
|                            |   |                                     |
| 301/504-8065               |   |                                     |
|                            |   |                                     |
| email:                     |   |                                     |
| kathyv@lpsi.barc.usda.gov  |   |                                     |
+----------------------------+---+-------------------------------------+

**POSTDOCTORAL AND VISITING SCIENTISTS**

**LIVESTOCK AND POULTRY SCIENCES INSTITUTE**

**BELTSVILLE, MARYLAND 20750-2350**

**[Gene Evaluation and Mapping Laboratory]{.underline}**

**Dr. Karen Moore**

Research Associate

Bldg. 211, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8800

email: kmoore@lpsi.barc.usda.gov

**Determine the role of milk proteins by developing whey acidic protein
(WAP) deficient mice and alpha casein deficient mice using homologous
recombination in embryonic stem cells. Future experiments will utilize
thee endogenous milk gene promoters to produce foreign proteins in the
milk using knockin technology.**

+--------------------------------+---+--------------------------------+
| **[Germplasm & Gamete          |   |                                |
| Physiology                     |   |                                |
| Laboratory]{.underline}**      |   |                                |
+--------------------------------+---+--------------------------------+
|                                |   |                                |
+--------------------------------+---+--------------------------------+
| **Dr. Wesley Garrett**         |   | Confocal microscopy associated |
|                                |   | with research on embryos,      |
| Research Associate             |   | sperm, ovaries, and the        |
|                                |   | genome.                        |
| Building 200, Rm. 4/17,        |   |                                |
| BARC-East                      |   |                                |
|                                |   |                                |
| 10300 Baltimore Avenue         |   |                                |
|                                |   |                                |
| Beltsville, MD 20705-2350      |   |                                |
|                                |   |                                |
| 301/504-9104/7413              |   |                                |
|                                |   |                                |
| email:                         |   |                                |
| wgarrett@lpsi.barc.usda.gov    |   |                                |
+--------------------------------+---+--------------------------------+
|                                |   |                                |
+--------------------------------+---+--------------------------------+
| **Dr. Serdia O. Mack**         |   | Gene expression in mammalian   |
|                                |   | gonads.                        |
| Visiting Scientist             |   |                                |
|                                |   |                                |
| Bldg. 200, Rm. 4, BARC-East    |   |                                |
|                                |   |                                |
| 10300 Baltimore Avenue         |   |                                |
|                                |   |                                |
| Beltsville, MD 20705-2350      |   |                                |
|                                |   |                                |
| 301/504-9104                   |   |                                |
|                                |   |                                |
| email: **smack@ac.howard.edu** |   |                                |
+--------------------------------+---+--------------------------------+
|                                |   |                                |
+--------------------------------+---+--------------------------------+

**[Growth Biology Laboratory]{.underline}**

+--------------------------------+---+--------------------------------+
| **Dr. Christopher Ashwell**    |   | Research and development work  |
|                                |   | on factors controlling feed    |
| Research Molecular Biologist   |   | intake in major livestock      |
|                                |   | species.                       |
| Bldg. 201, Rm. 5, BARC-East    |   |                                |
|                                |   |                                |
| 10300 Baltimore Avenue         |   |                                |
|                                |   |                                |
| Beltsville, MD 20705-2350      |   |                                |
|                                |   |                                |
| 301/504-5061                   |   |                                |
|                                |   |                                |
| email:                         |   |                                |
| cashwell@lpsi.barc.usda.gov    |   |                                |
+--------------------------------+---+--------------------------------+
|                                |   |                                |
+--------------------------------+---+--------------------------------+

**Dr. Dianne Wray-Cahen**

Research Associate

Bldg. 200, Rm. 207, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8760

email: dianew@lpsi.barc.usda.gov

Investigations on the role of growth modifiers in the regulation of
energy metabolism in swine.

**[Immunology and Disease Resistance Laboratory]{.underline}**

**Dr. Kang Duk Choi**

Molecular Biologist

Bldg. 1043, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8771

email: kchoi@lpsi.barc.usda.gov

Develop vaccines of preventing avian coccidia by recombinant DNA and
immunological techniques. Studies molecular and immunological
characteristics of avian coccidia for the development of anti-coccidial
vaccines. Clone and express avian cytokines and coccidial genes. Develop
new *in vitro* immunological techniques to assess cell-mediated immunity
of chickens.

**Dr. Gloria Solano-Aguilar**

Research Associate

Bldg. 1045, Rm. 9, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8373

email: gsolano@lpsi.barc.usda.gov

Assesses swine immune responses to toxoplasmosis. Uses immunologic and
molecular techniques to quantitate cells and cytokines which stimulate
protective immunity. Evaluates responses of vaccinated swine to identify
the best vaccine candidates and potential subunit antigens.

**Dr. Kenji Ishiwata**

Visiting Scientist

Bldg. 1040, Rm. 7, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20750-2350

301/504-87556

email: **ishiwata@lpsi.barc.usda.gov**

Conducts research on intestinal immune responses to parasitic infections
related to protective immunity, especially the role of mucins and
mucosal lymphocyte populations. Develops rodent models of infection with
nematode parasites to compare with similar infectious swine.

**Dr. Tine de Marez**

Research Associate

Bldg. 1002, BARC-East

10300 Baltimore Avenue

Beltsville MD d 20705-2350

301/504-8364

email: **tdemarez@lpsi.barc.usda.gov**

Investigates the immune response of cattle to Ostertagia ostertagi
infections. Uses immunologic and molecular techniques to identify
parasite substances which are potential immunomodulators in cattle.

**Dr. Lisa Schopf**

Research Associate

Bldg. 1040, Rm. 5, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8765

email: lschopf@lpsi.barc.usda.gov

Studies the role of cytokines in gastrointestinal nematode infections.
Elucidates the mechanisms of protective immunity using immunologic and
molecular techniques. Utilizes rodent models to study host/parasite

interactions and applies this knowledge to parasitic pathogens of
livestock.

**Dr. Cheol Yun**

Visiting Scientist

Bldg. 1043, Rm. 107, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8771

email: cheolyun@lpsi.barc.usda.gov

Works on avian immunity mainly focusing on changes of cytokines in
coccidiosis.

**Dr. Luis Jauregui**

Visiting Scientist

Bldg. 1045, Rm. 9, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8373

email: jauregui@lpsi.barc.usda.gov

Develops assays to detect swine cytokines and cell subsets from
peripheral blood and other lymphocyte populations from mucosal tissues
of normal and parasite infected pigs. Standardizes PCR-based molecular
techniques for the characterization of the kinetics of Toxoplasma gondii
infection in swine. Compares genetically defined pigs for their
responses to Toxoplasma gondii infection and identifies genetic factors
that enhance resistance against this parasite.

**Dr. Terezinha Padilha,** VisitingScientist

Bldg. 1040, Rm. 105, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8465

email: tpadilha@lpsi.barc.usda.gov

Conducts research on the role of host genetics on
resistance/susceptibility to nematode infection in cattle. Uses
molecular techniques to quantitate cytokines. Develops control program
for gastrointestinal nematodes of cattle in tropical regions.

**Tonya K. Nelson**

PhD Student

Bldg. 173, Rm. 102A, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301-504-8330

email: msmlstud@lpsi.barc.usda.gov

Investigates the presence and role of reactive nitrogen species in the
bovine mammary gland. Defines the cytokine profile in the mammary gland
during inflammation due to various causes.

**Dr. Jiangtao Zhu**

Visiting Scientist

Bldg. 1043, Rm. 107, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301-504-8771

email: jameszhu@lpsi.barc.usda.gov

Conduct studies designed to identify microsatellite DNA markers that are
associated with coccidiosis resistance and susceptibility in broiler
chickens. Analyze chicken genotypes and coccidiosis phenotypes to
determine the association between the DNA markers and disease resistance
to coccidiosis.

**[Meat Science Research Laboratory]{.underline}**

**Dr. George F. Fries** (retired)

Research Animal Scientist (Collaborator)

Bldg. 201, Rm. 4, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-9198

email: fries@lpsi.barc.usda.gov

Models transport of persistent toxic chemicals, with emphasis on
dioxins, through animal production systems to foods. Provides
information to federal and state action-regulatory agencies on human
exposure to these compounds.

**Dr. William A. Moats** (retired)

Research Chemist (Collaborator)

Bldg. 201, Rm. 204, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-7003

email: wmoats@lpsi.barc.usda.gov

Development of specific chemical methods for drug and antibiotic
residues in tissues and biological fluids of food-producing animals.
Comparison of chemical methods with bioassays and other screening
methods.

**Dr. Anisha Williams-Campbell**

Postdoctoral Research Associate

Bldg. 201, Rm. 8. BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8996

email: **acampbel@lpsi.barc.usda.gov**

Evaluate the microflora of meat products subjected to the Hydrodyne
process. Identify the effect, if any of the process on microorganisms,
specifically pathogens such as *Escherichia coli* 0157:H7. Investigate
the effect of GRAS compounds combined with the Hydrodyne method on the
spoilage process of fresh refrigerated meats. Provide information on
food safety implications of the Hydrodyne method.

**Dr. Zvi Holzer**

Visiting Scientist

Bldg. 201, Rm. 100B, BARC-East

10300 Baltimore Avenue

Beltsville, MD 20705-2350

301/504-8402

email:zholzer@lpsi.barc.usda.gov

Nutritional and hormonal growth regulation for the production of qualify
beef, especially rich in contributory components in the prevention of
cardiovascular diseases. Improving the eating and safety quality of
ritualistic harvested meat (kashrut, halal) by means of newly emerging
technologies (e.g., hydrodynamic pressure).

**[Nutrient Conservation and Metabolism Laboratory]{.underline}**

+--------------------------------+---+--------------------------------+
| **Dr. Jo Ann S. Van Kessel**   |   | Plan availability of nutrients |
|                                |   | (primarily nitrogen) in dairy  |
| Postdoctoral Research          |   | manure. Quantification and     |
| Associate                      |   | characterization of dairy      |
|                                |   | manure nitrogen. Evaluation    |
| Bldg. 200, Rm. 123, BARC-East  |   | and development of on-farm     |
|                                |   | rapid methods of manure        |
| 10300 Baltimore Avenue         |   | analysis**.**                  |
|                                |   |                                |
| Beltsville, MD 20705-2350      |   |                                |
|                                |   |                                |
| 301/504-8287/7192              |   |                                |
|                                |   |                                |
| email:                         |   |                                |
| jkessel@lpsi.barc.usda.gov     |   |                                |
+--------------------------------+---+--------------------------------+
|                                |   |                                |
+--------------------------------+---+--------------------------------+

**[Parasite Biology and Epidemiology Laboratory]{.underline}**

+--------------------------------+---+--------------------------------+
| **Dr. Susan Liddell**          |   | Develops serology-based and    |
|                                |   | polymerase chain               |
| Postdoctoral Research          |   | reaction-based diagnostic      |
| Associate                      |   | assays for                     |
|                                |   | [Neospora]{.underline}         |
| Bldg. 1040, BARC-East          |   | [caninum]{.underline} using    |
|                                |   | molecular biological           |
| 10300 Baltimore Avenue         |   | techniques.                    |
|                                |   |                                |
| Beltsville, MD 20705-2350      |   |                                |
|                                |   |                                |
| 301/504-8054                   |   |                                |
|                                |   |                                |
| email:                         |   |                                |
| sliddell@lpsi.barc.usda.gov    |   |                                |
+--------------------------------+---+--------------------------------+
|                                |   |                                |
+--------------------------------+---+--------------------------------+