Skip Ribbon Commands Skip to main content


Profile Image

Ronald P Lemenager

Animal Sciences 

  • Professor of Animal Sciences
LILY Room 3-108
915 W. State St.
West Lafayette, IN 47907-2054

Area of Expertise: Ruminant Nutrition and Management, Beef

Education: B.S., University of Illinois; M.S. and Ph.D., Oklahoma State University

Research Program

Extension Program


ANSC 44100 - Beef Management

Member of Purdue Teaching Academy and the Purdue Book of Great Teachers

Received both the Purdue University Outstanding Teacher and Counselor Awards in addition to the American Society of Animal Science Midwest Section Teaching Award

Media Channels |

News Releases

Personal Information

Dr. Lemenager grew up on a livestock and grain farm. He currently has a cattle herd of his own with his two sons which keeps them connected as a family. His cow herd is an activity that makes him better at what he does. From a teaching and extension standpoint, he fights the challenges of beef producers (weather, forages, costs, production, and drought), and he uses his farm in beef production labs as a teaching opportunity. 

Awards & Honors

(2009) College of Agriculture Team Award (Ethanol Co-products Team). Purdue University.

(2009) Special Award. Purdue University Cooperative Extension Specialist's Association (PUCESA).

(2008) Special Contribution and Service Award. Indiana Beef Cattle Association.

(2005) Lecturer - 13th Annual Totusek Lectureship. Oklahoma State University.

Selected Publications

Lemenager, R. P., Jones, D. D., Buckmaster, D. R., Field, W. E., Horstman, L. A., Johnson, K. D., . . . Williams, R. E. (2011). Cow-Calf Poduction In The U.S. Corn Belt (Vol. 1/1). Iowa State University/Ames, IA: Midwest Plan Service.

Gunn, P. J., Lemenager, R. P., Claeys, M. C., Buckmaster, D. R., & Lake, S. L. (2011). Effects of dried distiller’s grains with solubles and crude glycerin on performance, carcass characteristics, and metabolic parameters of early weaned beef calves.. Prof. Anim. Sci., 27, 283-294.

Culp, K. M., Claeys, M. C., & Lemenager, R. P. (2011). Showmaxx® in the Show Ring: A look at feeding zilpaterol hydrochloride to youth livestock projects., 2. Retrieved from

Van Emon, M. L., Gunn, P. J., Neary, M. K., Lemenager, R. P., Schultz, A. L., & Lake, S. L. (2011). Effects of added protein and dietary fat on lamb performance and carcass characteristics when fed differing levels of dried distiller’s grains with solubles.. Small Ruminant Research, 103(2012), 164-294.

Bridges, A., Lake, S., Lemenager, R. P., Claeys, M., Gunn, P., & Culp, K. (2009). Choosing an Estrus Synchronization Program for Replacement Beef Heifers, 2. Retrieved from

Bridges, A., Lake, S., Lemenager, R. P., Claeys, M., & Culp, K. (2009). Cost-Effective Timed-AI Options for Beef Cows, 2. Retrieved from

Arias, R. P., Snyder, L. J., Lemenager, R. P., & Lake, S. L. (2009). The Effects of Co-ensiling Wet Distiller's Grains Plus Solubles with Haylage on Feedlot Performance and Carcass Characteristics of Finishing Steers. J. Anim Sci., 4.

Horn, M., Gunn, P., Van Emon, M., Lemenager, R. P., Burgess, J., Pyatt, N. A., & Lake, S. L. (in press). Effects of Natural (RRR Alpha-tocopherol Acetate) or Synthetic (All Rac Alpha-tocopherol Acetate) Vitamin E Supplementation on Suckling Calf Performance, Colostrum IgG, and Immune Function. J. Anim Sci..

Arias, R. P., Snyder, L. J., Lemenager, R. P., & Lake, S. L. (2009). The Effects of Re-ensiling Wet Distiller's Grains Plus Solubles with Corn Silage on Growth Performance of Yearling Beef Heifers. J. Anim. Sci., 3.

Gunn, P. J., Weaver, A., Gerrard, D., Lemenager, R. P., & Lake, S. L. (2009). Effects of Dietary Fat and Crude Protein on Feedlot Performance and Carcass Characterisitcs in Steers Fed Differing Levels of Distiller's Dried Grains with Solubles. J. Anim. Sci., 87, 2882-2890.