Combinations of nonprotein nitrogen and natural protein affect performance of finishing steers fed flaked corn diets

dc.citation.epage36en_US
dc.citation.spage34en_US
dc.contributor.authorHealy, B.J.
dc.contributor.authorBrandt, Robert T., Jr.
dc.contributor.authorEck, T.P.
dc.date.accessioned2010-09-10T20:02:42Z
dc.date.available2010-09-10T20:02:42Z
dc.date.issued2010-09-10T20:02:42Z
dc.date.published1995en_US
dc.description.abstractTwo hundred crossbred steers (7 85 lb) were used to evaluate the effects of the relative proportion of supplemental nitrogen derived from soybean meal (SBM) and urea. Treatments included an unsupplemented negative control and four 13% CP diets containing SBM:urea proportions (nitrogen basis) of 100:0, 67:33, 33: 67, and 0:100. Steers fed the control diets gained 38% slower (P<.01); ate 4% less feed (P<.10); were 33% less efficient (P<.01); and had lighter carcasses (P<.01) with less backfat (P<.01), less kidney, pelvic, and heart fat (KPH; P<.12), less ribeye area (REA; P<.11) , and less marbling (P<.01) than nitrogen-supplemented steers. Among steers fed supplemented diets, feed intake increased linearly as proportion of SBM increased (P<.01) . Daily gain (P<.05) and feed:gain (P<.05) responded quadratically and was best for steers fed combinations of the nitrogen sources. Similarly, hot carcass weights and backfat thickness were greater (P<.06) for steers fed the mixed supplements. There was a tendency for a linear increase in KPH as proportion of urea in the diet was increased (P<.14). Yield grade, ribeye area, and marbling were unaffected by SBM:urea proportions. In high-concentrate finishing diets, at least some of the supplemental nitrogen should be derived from a natural, degradable-protein source.en_US
dc.description.conferenceCattlemen's Day, 1995, Kansas State University, Manhattan, KS, March 3, 1995en_US
dc.identifier.urihttp://hdl.handle.net/2097/4911
dc.publisherKansas State University. Agricultural Experiment Station and Cooperative Extension Serviceen_US
dc.relation.isPartOfCattlemen’s Day, 1995en_US
dc.relation.isPartOfKansas Agricultural Experiment Station contribution; no. 95-357-Sen_US
dc.relation.isPartOfReport of progress (Kansas State University. Agricultural Experiment Station and Cooperative Extension Service); 727en_US
dc.subjectBeefen_US
dc.subjectSoybean mealen_US
dc.subjectUreaen_US
dc.subjectFinishing steersen_US
dc.titleCombinations of nonprotein nitrogen and natural protein affect performance of finishing steers fed flaked corn dietsen_US
dc.typeConference paperen_US

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