Abstract

Forty-eight mixed-breed steers from two sources were used in a 141-day feedlot study to compare a control ration (C) with a ration containing magnesium-mica (MM; 9 lb/ton). No diet cattle source interactions were detected. Steer gain, efficiency, and cost of gain did not differ (P>.10) between diets. Marbling score tended (P<.10) to be greater and the percentage of cattle grading USDA Choice and net carcass value were greater (P<.05) for steers fed MM. Feeding MM in a feedlot ration may have a substantial economic impact on feedlot cattle.

Keywords: Cattlemen's Day, 1996, Kansas Agricultural Experiment Station contribution, no. 96-334-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 756, Beef, Magnesium-Mica, Feedlot cattle, Marbling score

How to Cite:

Coffey, K. & Brazle, F., (1996) “Performance of finishing steers offered magnesium-mica in the feedlot ration”, Kansas Agricultural Experiment Station Research Reports 1(1), 113-115. doi: https://doi.org/10.4148/2378-5977.1981