Am. Soc. Anim. Prod.
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Am. Soc. Anim. Prod. 1934:90-92
© 1934 American Society of Animal Science
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A Proposed Record of Performance for Beef Cattle

Laurence M. Winters and Harry McMahon

University of Minnesota

Abstract

The fundamental purpose of live stock improvement should be the development of strains of live stock which are more efficient in converting feedstuffs into products more useful to man. It has been rather generally assumed that improvement in body type carried with it a similar improvement in economy of converting feedstuffs into animal products useful to man. If such is the case, then we have a right to expect that steers of essentially the same phenotype will possess essentially the same ability to make gains economically.

It was for the purpose of testing this hypothesis that an experiment was instigated at the University of Minnesota in the fall of 1930. Eight yearling steers, all of which graded as good feeders were fed individually for 189 days. The eight steers exhibited marked differences in ability to make economical gains. The poorest doing steer made 100 pounds of






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Copyright © 1934 by the American Society of Animal Science.