Impact of increasing amounts of supplemental high-protein soybean meal on performance of range beef cows

Authors

C.P. Mathis
R.C. Cochran
B.C. Woods
J.S. Heldt
K. C. Olson
David M. Grieger

Keywords

Kansas Agricultural Experiment Station contribution; no. 97-309-S; Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 804; Cattlemen's Day, 1998; Beef; Range cows; Forage; Soybean meal

Abstract

One hundred and twenty spring-calving Hereford x Angus cows grazing low-quality, tallgrass-prairie forage were fed 1.0, 1.5, 2.0, 2.5, 3.0, 4.0, 5.0, or 6.0 lb soybean meal (SBM) per head daily. SBM as a source of supplemental degradable intake protein (DIP) can be effective in maintaining cow body weight and body condition during the winter grazing season. Performance as measured by changes in body weight and condition score was maximized when cows received approximately 3.5 to 3.8 lb/day. Below this level, cows lost about 48 lb (about .4 units of BCS) for every 1 lb decrease in the amount of supplemental SBM. The effect of amount of supplemental SBM on calf performance was minimal.

Recommended Citation

Mathis, C.P.; Cochran, R.C.; Woods, B.C.; Heldt, J.S.; Olson, K. C.; and Grieger, David M. (1998) "Impact of increasing amounts of supplemental high-protein soybean meal on performance of range beef cows," Kansas Agricultural Experiment Station Research Reports: Vol. 0: Iss. 1. https://doi.org/10.4148/2378-5977.1877