Cow Research

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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

Tennessee Cow/Calf Conference, 10/8/2014



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

Do We Need More Space?, 11/17/2015

Down to the Short Rows, 11/17/2015


(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 Resistance of Staphylococcus aureus Isolates from Dairy Cows and Genetic Diversity of Resistant Isolates Abdi, R. D., B. E. Gillespie, J. M. Vaughn, C. E. Merill, 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, Foodborne Pathog Dis. 2018 Jul;15(7):449-458. [Abstract]

Comparison of uterine and vaginal bacterial communities between pregnant and non-pregnant postpartum cows prior to fixed timed artificial insemination.  Ault, T. B.  2018.  M.S. Thesis.

Comparison of rumen fluid and serum metabolomes in Black Angus cows.  Clemmons, B. A., M. T. Henniger, J. B. Powers, E. A. Melchior, S. R. Campagna, B. H. Voy, D. R. Donohoe, and P. Myer.  2018.  ASAS-CSAS Annual Meeting and Trade Show, Vancouver, Canada.

Sire contribution to pregnancy loss and pregnancy associated glycoprotein (PAG) production in Nelore cows.  Franco, G. A., R. F. G. Perese, C. F. G. Martins, S. T. Reese, J. L. M. Vasconcelos, and K. Pohler.  2018.  Journal of Animal Science.

2018 Cow-Calf Budget.  Griffith, A. P., and R. G. Bowling.  2018.  University of Tennessee Extension Publication, D 31.

Bovine intramammary infection associated immunogenic surface proteins of Streptococcus uberis Kerro Dego, O., R. A. Almeida, A. M. Saxton, R. D. Abdi, D. B. Ensermu, and S. P. Oliver.  2018.  Microbial Pathogenesis, Volume 115: 304 - 311, February 2018. [Abstract]

Transformation of uterine and vaginal bacteriome throughout synchronization protocol between pregnant and non-pregnant postpartum cows.  T. B. Ault, B. A. Clemmons, F. G. Dantas, G. A. Franco, S. T. Reese, P. Myer, and K. Pohler.  2018.  The Society for the Study of Reproduction Annual Meeting.

A 100-Year Review: Lactating dairy cattle housing management Bewley, J. M., L. M. Robertson, and E. Eckelkamp.  2017.  Journal of Dairy Science, 100(12), 10418-10431. [Abstract]

Optimal Milk Production for Cows in Beef Cattle Production.  Boyer, C., S. E. Edwards, J. D. Hobbs, J. T. Mulliniks, and A. P. Griffith.  2017.  Southern Agricultural Economics Association annual meeting, Mobile, AL. February 4-7, 2017..

Effects of stocking density and access on short-term responses in ruminal fermentation of Holstein dairy cows.  Campbell, M. A., H. M. Dann, P. D. Krawczel, and R. J. Grant.  2017.  Journal of Dairy Science, 100(Suppl. 2): 367.

Effects of stocking density and access on short-term lying, feeding, and rumination responses of Holstein dairy cows.  Campbell, M. A., H. M. Dann, P. D. Krawczel, and R. J. Grant.  2017.  Journal of Dairy Science, 100(Suppl. 2): 367.

Effects of stocking density and access on the behaviour of lactating Holstein dairy cows.  Campbell, M. A., P. D. Krawczel, H. M. Dann, and R. J. Grant.  2017.  Proceedings of the 51st International Congress of the International Society of Applied Ethology, Page 150. Aarhus, Denmark.