Abstract

Generic products generally have a cost advantage for beef producers over brand-name products. Recently, many beef producers have debated whether to utilize generic anthelmintics in cow/calf herds and feeder cattle. If generics are to be justified, the products must be proven to have efficacy similar to the brand-name product. Previous studies have indicated that generic macrocyclic lactones are less effective in controlling gastrointestinal parasites of cattle than the original brand-name products. The objective of this study was to compare the efficacy of Vetrimec (Norbrook Laboratories Limited, Newry, Co. Down, Northern Ireland) pour-on and Ivomec (Merial Animal Health, Duluth, GA) pour-on by utilizing the fecal egg reduction test in newly arrived feedlot steers.

Keywords: Cattlemen's Day, 2012, Kansas Agricultural Experiment Station contribution, no. 12-231-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 1065, Beef Cattle Research, 2012 is known as Cattlemen's Day, Beef, Ivermectin Pour-on, Feedlot, Anthelmintics

How to Cite:

Tarpoff, A., Guichon, T., Thomson, D. U., Wileman, B. W. & Reinhardt, C. D., (2012) “Comparative efficacy of two Ivermectin Pour-on anthelmintics in beef steers in a commercial feedyard”, Kansas Agricultural Experiment Station Research Reports 1(1), 12-14. doi: https://doi.org/10.4148/2378-5977.1407