Abstract

More urea, a torn of nonprotein nitrogen, would be fed to ruminants except for inefficient conversion of urea-nitrogen to Microbial protein, toxicity, lack of palatability and urea segregating in mixed rations. As a supplement for cattle on high-roughage rations, urea should be fed with a readily available energy source for urea nitrogen to be converted to microbial protein by rumen microorganisms. Attempting to overcome some or all of those problems, Bartley and co-workers at Kansas State University (Feedstuffs. 27 Apr. 68; 40:9) developed an expansion-processed mixture of grain and urea (Starea).We tested Starea and soybean meal as protein supplements for beef cows grazing dry bluestem pasture during the winter.

Keywords: Cattlemen's Day, 1971, Report of progress (Kansas State University. Agricultural Experiment Station), 546, Beef, Starea, Urea, Soybean meal, Bluestem pasture

How to Cite:

Tucker, L., Harbers, L. & Smith, E., (1971) “Starea, urea and soybean meal compared in wintering rations for cows on bluestem pasture”, Kansas Agricultural Experiment Station Research Reports 1(1), 28-30. doi: https://doi.org/10.4148/2378-5977.2827