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Professor

Ph.D. - Michigan State University, 1993

Phone: 301-405-4583
Email: rkohn@umd.edu

Representative Publications:

Kohn, R. A., Z. Dou, J. D. Ferguson, and R.C. Boston. 1997. A sensitivity analysis of nitrogen losses from dairy farms. J. Environmental Management 50: 417-428.

Jonker, J.S., R. A. Kohn, and R. A. Erdman. 1998. Using milk urea nitrogen to predict nitrogen excretion and utilization efficiency in lactating dairy cattle. J. Dairy Sci. 81: 2681-2692.

Kalscheur, K .F., J. H. Vandersall, R. A. Erdman, R. A. Kohn, and E. Russek-Cohen. 1999. Effects of dietary crude protein concentration and degradability on milk production responses of lactating dairy cows. J. Dairy Sci. 82: 545-554.-976.

Dunlap, T. F., R. A. Kohn, G. E. Dahl, R. A. Erdman, and M. Varner. 2000. The impact of bovine somatotropin, three times daily milking or extended photoperiod on nitrogen flows from dairy farms. J. Dairy Sci. 83: 968

Jonker, J. S., R. A. Kohn, and J. High. 2002. Dairy herd management practices that impact nitrogen utilization efficiency. J. Dairy Sci.