Level of urea in high grain diets: finishing steer performance

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dc.contributor.author Milton, C.T.
dc.contributor.author Brandt, Robert T., Jr.
dc.date.accessioned 2010-09-10T19:53:46Z
dc.date.available 2010-09-10T19:53:46Z
dc.date.issued 2010-09-10T19:53:46Z
dc.identifier.uri http://hdl.handle.net/2097/4886
dc.description.abstract Eighty-eight medium-framed crossbred steers (731 lb) were used to identify the optimal level of urea in finishing diets for growth and carcass traits. Diets contained no urea or .5, 1.0, or 1.5% urea (dry matter basis) and no other supplemental protein. Feed efficiency and gain were improved substantially by the first increment of urea (.5%), with little or no improvement from subsequent urea additions. Pooled across level, urea improved feed efficiency by 5.6% and gain by 8.9%, whereas dry matter intake declined 3.3% compared to controls. Regression analysis indicated that the optimal level of urea for gain and feed efficiency was .91% of dietary dry matter. Dressing percentage and hot carcass weight responded quadratically, being higher for steers receiving .5 or 1.0% urea. Fat thickness, yield grade, and KPH fat increased linearly with level of urea. Percentage choice carcasses tended to increase, although no differences in marbling score were observed with increased urea. Because of increased carcass weight and finish, with no increase in loineye area, these data suggest that adding urea increased energy utilization (diet digestibility) rather than metabolizable protein supply to the small intestine. en_US
dc.publisher Kansas State University. Agricultural Experiment Station and Cooperative Extension Service en_US
dc.relation.isPartOf Cattlemen’s Day, 1994 en_US
dc.relation.isPartOf Kansas Agricultural Experiment Station contribution; no. 94-373-S en_US
dc.relation.isPartOf Report of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 704 en_US
dc.subject Beef en_US
dc.subject Finishing steers en_US
dc.subject Urea en_US
dc.subject Performance en_US
dc.subject Metabolizable protein en_US
dc.title Level of urea in high grain diets: finishing steer performance en_US
dc.type Conference paper en_US
dc.date.published 1994 en_US
dc.citation.epage 3 en_US
dc.citation.spage 1 en_US
dc.description.conference Cattlemen's Day, 1994, Kansas State University, Manhattan, KS, March 4, 1994 en_US

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