Cow Research

If we've left out important UTIA personnel or resources, please send us a link.


Peter Downs Krawczel
Assistant Professor
Behavior and Welfare of Dairy Cows

Megan L. Leffew
Extension Specialist II
Marketing Specialist

Michael John De Veth
Assistant Professor
Bioactive compound influence on dairy cattle


Fall Heifer & Cow Sale, 11/30/2018

Cows, Fire, Biofuel and Wildlife, 3/11/2015



Israeli and UTIA Scientists Receive Grant to Study Bovine Mastitis in Dairy Cows, 2/18/2019

The Hat, 1/17/2019

Willingness to Adopt Biosecurity Measures to Combat Foreign Animal Disease Outbreaks, 10/31/2018

2017 Director's Awards Recipients Announced, 1/18/2018

AgResearch Faculty and Staff Presented with Awards at 2017 UTIA Luncheon, 11/8/2017

Promotion and Tenure 2017, 10/16/2017

Beef Heifer Development Center–One Year Later, 12/29/2016

2016 Director's Awards Recipients Announced, 12/22/2016

Faculty 360 | Sindhu Jagadamma, 9/22/2016

Five Things You Didn't Know about the Middle Tennessee AgResearch and Education Center, 5/24/2016


(1 mention)

Livestock Research 
It's a problem for Tennessee farmers who produce our top commodity -- beef cattle. Insects such as flies cause serious health problems for their animals, and reduce product quality for consumers.

(1 mention)

Cattle Facility 
Beef cattle farming is Tennessee's top agricultural commodity - generating nearly 600 million dollars each year.


Recent Publications

Antimicrobial activity of Persicaria pensylvanica extract against Staphylococcus aureus Abdi, R. D., and O. Kerro Dego.  2019.  European Journal of Integrative Medicine, Volume 29, August 2019. [Abstract]

Uterine and vaginal bacterial community diversity prior to artificial insemination between pregnant and non-pregnant postpartum cows Ault, T. B., B. A. Clemmons, S. T. Reese, F. G. Dantas, G. A. Franco, T. P. L. Smith, J. L. Edwards, P. Myer, and K. G. Pohler.  2019.  Journal of Animal Science.

Reproductive Failure’s Impact on Beef Cow Profitability.  Boyer, C., A. P. Griffith, and K. L. DeLong.  2019.  Journal of Agricultural and Resource Economics.

Cow-calf Producers' Willingness to Pay for Bulls Resistant to Horn Flies, Haematobia irritans (L.) (Diptera: Muscidae).  Griffith, A. P., L. McKay, K. L. DeLong, R. T. Trout Fryxell, S. M. Schexnayder, D. B. Taylor, and P. Olfason.  2019.  University of Tennessee Extension, W 821.

Cow-calf Producers' Willingness to Pay for Bulls Resistant to Horn Flies, Haematobia irritans (L.) (Diptera: Muscidae) L. McKay, K. L. DeLong, S. M. Schexnayder, A. P. Griffith, D. B. Taylor, P. Olfason, and R. T. Trout Fryxell.  2019.  Journal of Economic Entomology, 112(3): 1476-1484.

Invited Review: Adaptations of protein and amino acid metabolism to heat stress on dairy cows and other livestock species.  Rius, A.  2019.  Applied Animal Science.

Lying time and its importance to the dairy cow – impact of stocking density and time budget stresses.  A. R. Lee, and P. D. Krawczel.  2018.  Veterinary Clinics of North America: Food Animal Practice.

Thermoregulatory responses of lactating dairy cows to an acute heat stress after a pharmacologically-induced LH surge.  Abbott, C.  2018.  M.S. Thesis.

Antimicrobial resistance patterns of S. aureus and other bacterial mastitis pathogens isolated from milk of dairy cows.  Abdi, R. D., B. E. Gillespie, G. M. Pighetti, R. A. Almeida, S. P. Oliver, and O. Kerro Dego.  2018.  Mastitis Research Workers Annual meeting, October 24 – 26, Chicago, Illinois..

Antimicrobial resistance of Staphylococcus aureus isolates from dairy cows and genetic diversity of resistant isolates Abdi, R. D., B. E. Gillespie, J. Vaughn, C. Merrill, S. I. Headrick, D. B. Ensermu, D. H. D'Souza, R. A. Almeida, S. P. Oliver, G. E. Agga, and O. Kerro Dego.  2018.  Foodborne Pathogens and Disease, Volume 15, issue 7, Page 449 - 458.

Antimicrobial resistance patterns of bacterial isolates from cases of mastitis in dairy cows.  Abdi, R. D., B. E. Gillespie, S. I. Headrick, G. M. Pighetti, R. A. Almeida, S. P. Oliver, and O. Kerro Dego.  2018.  American Dairy Science Association Annual Meeting, June 24 – 27, Knoxville, TN..

Investigation of DRD2 Adams, S., C. J. Kojima, J. Andrae, and S. Duckett.  2018.  Journal of Animal Science, Volume 96, Issue suppl_3, 7 December 2018, Page 208. [Abstract]