Abstract

During two winters, 96 beef cows in late gestation were utilized in 60-day precalving feeding trials to evaluate supplementation for cows fed ammoniated wheat straw. Treatments included: control--mineral supplement only (C), 3 lbs milo + mineral (3M), 6 lb milo + mineral (6M), and 2.75 lb milo + .75 lb soybean meal + mineral (SBM). 3M increased (P<.05) cow gain over control but body condition changes were similar. 6M and SBM resulted in similar gains and body weight changes, which were higher than those of cows receiving either C or 3M. Birth weight of calves, percent cycling at the start of breeding, and percent pregnant after a 60-day breeding season were not affected by treatment. Natural protein appears to be a major limiting nutrient in cows fed ammoniated wheat straw.

Keywords: Cattlemen's Day, 1991, Kansas Agricultural Experiment Station contribution, no. 91-355-S, Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service), 623, Beef, Ammoniation, Wheat straw, Cows, Supplementation

How to Cite:

Beck, T., Simms, D., Brandt, R. T., Jr., Cochran, R. & Kuhl, G. L., (1991) “Supplementation of ammoniated wheat straw in wintering diets of gestating beef cows”, Kansas Agricultural Experiment Station Research Reports 1(1), 102-103. doi: https://doi.org/10.4148/2378-5977.2233