Dr. Mark Varner
Dr. Mark Varner
Professor
Extension
Dairy Scientist
Ph.D. - North
Carolina State University, 1982
Phone: 301-405-1374
Email: markv@umd.edu
Representative Publications:
Erdman, R. and Varner, M. 1995. Fixed production responses to increased milking frequency. J. Dairy Sci. 8:1199-1203.
Varner, M.A. and A. Brand. 1996. V. Monitoring Herd Fertility. 3. Decision making, problem analysis and follow up. Herd Health and Production in Dairy Practice. A. Brand, J.P.T.M. Noordhuizen- Stassen and Y.Y. Schukken. Wageningen Press, Wageningen, NL. pp 313-333.
Lefcourt, A.R., D. Erez, M.A. Varner, B. Barfield, and V. Tasch. 1999. A noninvasive radiotelemetry system to monitor heart rate for assessing stress responses of bovines. J. Dairy Sci., 82:1179-1187.
Dunlap, T.F., R.A. Kohn, G.E. Dahl, M.A. Varner, and R.E. Erdman. 2000. The impact of somatotropin, milking frequence and photoperiod on dairy farm nutrient flows. J. Dairy Sci., 83:968-976.
Rajkondawar, P. U. Tasch, A.M. Lefcourt, B. Erez and M.A. Varner. 2000. A walkthrough gait analysis system that automatically detects lameness of dairy herds. Tran. 2000 ASAE Annual Conf. Milwaukee, WI, 9-12 July.
Rajkondawar, P. U. Tasch, A.M. Lefcourt, B. Erez, R. Dyer and M.A. Varner. 2002. A system for identifying lameness in dairy cattle. Applied Engineering in Agriculture. 18:87-96.
Rajkondawar, P., U. Tasch, A.M. Lefcourt, N.K. Neerchal, R.M. Dyer, M.A. Varner, B. Erez and U. Tasch. 2002. The development of an objective lameness scoring system for dairy herds: Pilot study. Trans. ASAE. Vol. 45:1123–1125.
Guo, K., E. Russek-Cohen, M. Varner and R. Kohn. 2004. Effects of milk urea nitrogen and other factors on probability of conception of dairy cows. J. Dairy Sci. 87:1878-1885.
Rajkondawar, P.G., M. Liu, R. M. Dyer, N. K. Neerchal, U. Tasch, A. M. Lefcourt, B. Erez, and M. A. Varner. 2006. Comparison of Models to Identify Lame Cows on Gait and Lesion Scores, and Limb Movement Variables. J. Dairy Sci. 89:4267-4275.
