Dr. Todd Bilby
Dairy Extension Specialist/Assistant Professor
Office: Shantz Building 228
520-626-9383
trbilby@ag.arizona.edu
Degrees
- Ph.D. - University of Florida, Gainesville, Florida
- M.S. - University of Arkansas, Fayetteville, Arkansas
- B.S. - Oklahoma State University, Stillwater, Oklahoma
Classes Taught
- ANS 472/572 - Advanced Dairy Herd Management
Dr. Todd Bilby joined the University of Arizona Department of Animal Sciences faculty in February 2007. Prior to joining the University of Arizona, he worked for Monsanto Company in the central valley of California. Dr. Bilby's masters and doctorate training was in the area of reproduction. He organizes Arizona Dairy Day which attracts approximately 750 people from around the state that work in the dairy industry. In addition, he also organizes the Arizona Dairy Production Conference for dairy producers and industry professionals. This meeting primarily targets "hot topics" facing Arizona dairy producers. Dr. Bilby's appointment is 60% extension, 30% research, and 10% teaching.
Research Interests
Reproductive Physiology: Primary research focus will be optimizing reproductive efficiencies during heat stress. This will encompass optimizing synchronization programs and developing strategies to reduce embryo loss in dairy cattle.
Nutritional Physiology: Research will focus on nutritional ways to improve reproduction during heat stress. This will focus on evaluating feeding different feed additives to possibly reduce heat stress effects on follicular dynamics, the early growing embryo and milk production.
Cow Comfort and Cooling: Research will focus on evaluating different cooling technologies, facility design and heat abatement on dairy farms. This will involve determining and optimizing different cooling procedures and technologies to improve farm profitability.
Selected Publications
- Thatcher, W.W., F.T. Silvestre, T.R. Bilby, C.R. Staples, J.E.P. Santos, M.E. Benzaquen, C.A. Risco, and L.A. MacLaren. 2006. Nutrient Regulation of Hormonal, Humoral, and Cellular Responses in Postpartum Lactating Dairy Cows: Building Blocks for Restoration of Fertility. Recent Advances in Animal Nutrition, pg. 37-59.
- Bilby, T.R., A. Sozzi, M. M. Lopez, F. T. Silvestre, A. D. Ealy, C. R. Staples, and W. W. Thatcher. 2006. Pregnancy, Bovine Somatotropin, and Dietary n-3 Fatty Acids in Lactating Dairy Cows: I. Ovarian, Conceptus, and Growth Hormone-Insulin-Like Growth Factor System Responses. J. Dairy Sci. 89:3360-3374.
- Bilby, T.R., A. Guzeloglu, L. A. MacLaren, C. R. Staples, and W. W. Thatcher. 2006. Pregnancy, Bovine Somatotropin, and Dietary n-3 Fatty Acids in Lactating Dairy Cows: II. Endometrial Gene Expression Related to Maintenance of Pregnancy. J. Dairy Sci. 89:3375-3385.
- Bilby, T.R., T. Jenkins, C. R. Staples, and W. W. Thatcher. 2006. Pregnancy, Bovine Somatotropin, and Dietary n-3 Fatty Acids in Lactating Dairy Cows: III. Fatty Acid Distribution. J. Dairy Sci. 89:3375-3385.
- Thatcher, W.W., A. Guzeloglu, and T.R. Bilby. 2006. Early Embryonic Mortality: Causes, Consequences, and Remedies. Belgium Reproduction (Vlaams Diergeneeskundig Tijdschrift) 75: 106-113.
- Thatcher, W.W., T. R. Bilby, J.A. Bartolome, F. Silvestre, C.R. Staples, and J.E.P. Santos. 2006. Strategies for improving fertility in the modern dairy cow. Theriogenology 65:30-44.
- Block, J., R.M. Rivera, M. Drost, F.D. Jousan, C.R. Looney, F. Silvestre, F.F. Paula-Lopes, O.M. Ocon, H. Rosson, T.R. Bilby, R. L. Monson, J.J. Rutledge, and P.J. Hansen. 2004. Short Communication: Effect of Bovine Somatotropin and Breed on Pregnancy Rates Following Timed Embryo Transfer in Nonlactating Cows. Vet. Rec. 156:175-176.
- Guzeloglu, A., T.R. Bilby, A. Meikle, S. Kamimura, A. Kowalski, F. Michel, L.A. MacLaren, and W.W. Thatcher. 2004. Pregnancy and Bovine Somatotropin in Nonlactating Dairy Cows: II. Endometrial Gene Expression Related to Maintenance of Pregnancy. J. Dairy Sci. 87:3268-3279.
- Bilby, T.R., A. Guzeloglu, S. Kamimura, S.M. Pancarci, F. Michel, H.H. Head, and W. W. Thatcher. 2004. Pregnancy and Bovine Somatotropin in Nonlactating Dairy Cows: I. Ovarian, Conceptus, and Insulin-Like Growth Factor Responses. J. Dairy Sci. 87:3256-3267.
- Thatcher, W.W., A. Guzeloglu, A. Meikle, S. Kamimura, T. Bilby, A.A. Kowalski, L. Badinga, R. Pershing, J. Bartolome, J.E.P. Santos. 2003. Regulation of Embryo Survival. Reprod. Suppl. 61:253-66. Review.
- Rorie, R.W., T.R. Bilby, and T.D. Lester. 2002. Application of Electronic Estrus Detection Technologies to Reproductive Management of Cattle. Theriogenology 57:137-48. Review.
Program Coordinator
Laura Rittenbach
520-626-9382
ljr22@ag.arizona.edu
Bilby Lab
Shantz Building Room 220 and 215
