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
 Animal Health Genomics: Clay Center, NE
 close



    Research

                    Research Projects
                                    Publications
                                    Collaborations
                                    News
                People

                    Staff Listing
                                    Careers


        


                    Researchers
                        Carol Chitko-McKown
                                    Mike Clawson
                                    Mike Heaton
                                    Aspen Workman
                    WGS
                        WGS main page
                                    Cattle reference (v2.9)
                                    Cattle extended (v1.0)
                                    Sheep reference (v2.4)
                                    Sheep extended (v1.0)
                                    Sheep ISGC75
                                    Species mapped to cattle
                                    Species mapped to sheep
                                    Cell linesSearch small
                    Search
            
            ARS Home
                                About ARS
                                Contact Us




Dr. Aspen Workman with Ginger, the first gene-edited calf resistant to a major viral pathogen. Read story
 Research on bovine congestive heart failure (BCHF) in feedlot steers
 Animal health genome-wide association studies focus on case-control pairs matched for pathogen and disease exposure.  Fraternal twins of the same sex represent the ideal pair.
 Electron micrograph of the USMARCreference bacterium*Mannheimia hemolytica*183, associated with a severe outbreak of bovine respiratory disease.


Mission


People Allison, Nathan Bierman, Stacy Chitko-Mckown, Carol Clawson, Michael
                                            *- Mike* Hauver, Susan
                                            *- Sue* Heaton, Michael
                                            *- Mike* Schuller, Genevieve
                                            *- Gennie* Workman, Aspen


Plains Area   carol.chitkomckown@usda.gov


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