J. Anim Sci.
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J. Anim Sci. 1955. 14:132-136.
© 1955 American Society of Animal Science
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Urea and Methionine in Fattening Rations for Lambs

Robert L. Noble, L. S. Pope and Willis D. Gallup

Oklahoma Agricultural Experiment Station1

Abstract

In three feed-lot trials, urea and soybean meal, alone and in combination with methionine, were compared as nitrogen supplements to a low-protein basal ration for fattening lambs. The basal and supplemented rations were similar in T.D.N. and contained about 8.5 and 11 percent protein, respectively.

Methionine and urea added separately to the basal ration failed to improve rate of gain; when added in combination they increased slightly the daily gain in each trial, but the increases were not statistically significant. Soybean meal as a supplement to the basal ration consistently improved rate of gain and feed efficiency. Addition of methionine to the soybean meal ration was without effect.

Footnotes

1 Departments of Animal Husbandry and Agricultural Chemistry Research, Stillwater, Oklahoma.






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Copyright © 1955 by the American Society of Animal Science.