J. Anim Sci.
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J. Anim Sci. 1960. 19:1009-1012.
© 1960 American Society of Animal Science
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Effects of Level of 3, 3' Diallylhexestrol on Steer Performance and Carcass Characteristics1

I. A. Dyer, E. H. Rupnow and W. E. Ham

Washington State University, Pullman

Abstract

Three groups of yearling steers were full-fed individually rations supplying either 0, 19 or 38 mg. DAH per head daily for 106 days. The 19-mg. level increased rates of gain (P<.05). The gain of cattle fed 36 mg. per head daily was not significantly different from that of those fed the control ration.

Shrink, rumen microbial activity, and serum and liver transaminase levels were determined. Differences were not significant. The feeding of either 19 or 38 mg. of DAH increased estimated marbling and the total calculated carcass fat.

Footnotes

1 Scientific Paper No. 1894. Washington Agricultural Experiment Stations, Project 1217. This study was supported in part by Armour and Company, Chicago. Appreciation is expressed to S.T. Larkin for care of the experimental animals.






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Copyright © 1960 by the American Society of Animal Science.