U.S. flagAn official website of the United States government
                    Here's how you know **Official websites use .gov**
                            
                            A **.gov** website belongs to an official government organization in the United States.
 **Secure .gov websites use HTTPS**
                            
                            A **lock** (                            
                              A locked padlock                                                      
                            
                            ) or **https://** means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.


Menu Agricultural Research Service
						
                    U.S. DEPARTMENT OF AGRICULTURE
 close



Research
                Research Home
                            National Programs
                            Research Projects
                            Scientific Manuscripts
                            International Engagement
                            Scientific Software/Models
                            Databases and Datasets
                            Office of Scientific Quality Review
            Media
                News & Features
                            Multimedia
                            Briefing Room
                            Down on the Farm
                            Press Room
                            Science in Your Shopping Cart
                            Scientific Discoveries
                            Tellus
                            Under the Microscope
            About ARS
                About ARS Home
                            Staff Directory
                            Labs and Research Centers (Map)
                            Headquarter Offices
                            Organizational Chart
                            Employee Services (REE Employees Only)
                            Office of Outreach, Diversity, and Equal Opportunity
            Work With Us
                Work With Us Home
                            ARS Vacancies at USAJOBS
                            Careers at ARS Information
                            Scientific Collaborations
                            Extramural Agreements
                            1890 Faculty Research Sabbatical ProgramSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




ARS Home Research Publications at this Location





- ARS National Programs
- Search for a scientific manuscript
- Search for a research project
- ARS Software
- Programs and Projects
- Collaborations
- Subjects of Investigation
- Publications

Title:   Author  item
                                            Wiggans, Georgeitem
                                            Vanraden, Paulitem
                                            Bacheller, Lillianitem
                                            Ross  Jr, Frankitem
                                            Sonstegard, Taditem
                                            GE MEERMAN, G - UNIV OF GRONINGENitem
                                            Van Tassell, Curtis

                                                         - *Curt*
  Submitted to: Journal of Dairy Science
                                    Publication Type: Abstract Only
                                    Publication Acceptance Date: 3/4/2009
                                    Publication  Date: 7/12/2009
                                    Citation: Wiggans, G.R., Van Raden, P.M., Bacheller, L.R., Ross  Jr, F.A., Sonstegard, T.S., Ge Meerman, G., Van Tassell, C.P. 2009. Transition of genomic evaluation from a research project to a production system. Journal of Dairy Science. 92(E-Suppl. 1):313-314(abstr. 278).Interpretive Summary:
                                Technical Abstract: Genomic data began to be included in official USDA genetic evaluations of dairy cattle in January 2009. Numerous changes to the evaluation system were made to enable efficient management of genomic information, to incorporate it in official evaluations, and to distribute evaluations. Artificial-insemination and breed organizations can use an online query to designate animals to be genotyped, to determine if the animal has already been nominated, and to check for the reason if a genotype was rejected. Four commercial laboratories provide genotypes. A genomic sample scanner generates large files of intensity data, which are used to determine the genotype of each single-nucleotide polymorphism (SNP). A technique to adjust jointly for sample and SNP effects may improve call rate and allow automation of adjustment for differences among scanners and reagent batches. Genotypes for 58,336 SNP are stored in a database table with 1 row per animal genotype. Genotypes rejected from evaluation because of parentage conflicts are stored to allow easy recovery if the conflict is resolved. For evaluation, genotypes for new animals and those with pedigree changes are extracted, combined with verified genotypes from the previous evaluation, and searched for conflicts. Validated genotypes are shared with Canada. Data for all ancestors of genotyped animals are collected, and missing pedigrees and foreign cow evaluations prior to addition of genomic data are obtained. The most recent evaluations from the Interbull Centre (Uppsala, Sweden) are combined with genomic data into a single evaluation that includes all available information. The US Jersey and Brown Swiss breed associations have sought additional animals to genotype, and the Brown Swiss association has arranged to share genotypes with European countries. The evaluation system is being streamlined to provide genomic evaluations that meet industry needs and can be produced with available resources.


Return to top


Connect with ARS Sign up


ARS Home
                            USDA.gov
                            Plain Writing
                            Policies & Links
                            Civil Rights Statements
                            FOIA
                            Accessibility Statement
                            Privacy Policy
                            Non-Discrimination Statement
                            Quality of Information
                            USA.gov
                            WhiteHouse.gov