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Dr. Valerie Ryman is an Assistant Professor and Extension Dairy Specialist in the Animal and Dairy Science Department. She received her B.S. from Clemson University, M.S. from University of Georgia, and Ph.D. from Michigan State University. After completing her Ph.D., Dr. Ryman worked as a Postdoctoral Research Associate at University of Georgia before accepting a position as a Public Service Assistant and Extension Dairy Specialist in the Animal and Dairy Science Department. Her responsibilities as an Extension Dairy Specialist included teaching and extension activities in mammary health, mastitis, and milk quality. Currently, as an Assistant Professor and Extension Dairy Specialist, she continues to serve the dairy stakeholders in Georgia while also teaching the next generation of animal and dairy scientists.
B.S., Clemson University
M.S., University of Georgia
Ph.D., Michigan State University
Description of Extension Interests
Dr. Ryman’s extension interests are focused on assisting dairy cattle producers with strategies to maximize mammary health and milk quality. Dr. Ryman works with dairy producers and stakeholders in Georgia to reduce mammary disease (i.e., mastitis) in dairy cattle and its associated health and economic impacts through on-farm evaluations and consultations, hands-on workshops, seminars, and extension publications. Dr. Ryman also maintains an applied research program in this area to train both undergraduate and graduate students in dairy cattle science and extension activities, as well as, explore techniques that can be directly implemented on dairy operations.
ADSC 2000 – Practicum in Animal and Dairy Science
ADSC 3420 – Physiology of Lactation in Farm Animals
ADSC 3810 – Animal and Dairy Science Orientation
ADSC 4960 – Undergraduate Research in Animal and Dairy Science
ADSC 8800 – Graduate Seminar
Selected Recent Publications
Nickerson, S.C. and V. Ryman. 2019. Role of Antibiotic Therapy in Mastitis Control for Lactating and Dry Cows. UGA Cooperative Extension Bulletin 1516. Pages 1-11.
Ryman, V.E., N. Packiriswamy, B. Norby, J.C. Gandy, S.M. Schmidt, A.L. Lock, and L.M. Sordillo. 2017. Supplementation of linoleic acid (C18:2n-6) or α-linolenic acid (C18:3n-3) changes microbial agonist-induced oxylipid biosynthesis. J Dairy Sci, 100:1870-1887.
Ryman, V.E., N. Packiriswamy, J.C. Gandy, and L.M. Sordillo. 2016. Apoptosis of endothelial cells by 13-HPODE contributes to impairment of endothelial barrier integrity. Mediat Inflamm. vol. 2016, Article ID 9867138, 13 pages. doi:10.1155/2016/9867138.
Ryman, V.E., N. Packiriswamy, and L.M. Sordillo. 2015. Role of endothelial cells in bovine mammary gland health and disease. Anim Health Res Rev, 16:135-149.
Mavangira, V, J.C. Gandy, C. Zhang, V.E. Ryman, A.D. Jones, and L.M. Sordillo. 2015. Polyunsaturated fatty acids influence differential biosynthesis of oxylipids and other lipid mediators during bovine coliform mastitis. J Dairy Sci, 98:6202-6215.
Ryman, V.E., G.M. Pighetti, J.D. Lippolis, J.C. Gandy, C.M. Applegate, and L.M. Sordillo. 2015. Quantification of bovine oxylipids during intramammary Streptococcus uberis infection. Prostaglandins Other Lipid Mediat, 121:207-217.
Ryman, V.E., S.C. Nickerson, D.J. Hurley, R.D. Berghaus, and F.M. Kautz, 2013. Influence of horn flies (Haematobia irritans) on teat skin condition, intramammary infection, and serum anti-S. aureus antibody titres in Holstein heifers. Res Vet Sci, 95:343-346.
Ryman, V.E., S.C. Nickerson, F.M. Kautz, D.J. Hurley, L.O. Ely, Y.Q. Wang, and N.E. Forsberg. 2013. Effect of dietary supplementation on the antimicrobial activity of blood leukocytes isolated from Holstein heifers. Res Vet Sci, 95:969-974.