J. Anim Sci.
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J. Anim Sci. 1944. 3:219-223.
© 1944 American Society of Animal Science
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Correlation between Rate and Efficiency of Gain in Steers

Bradford Knapp, Jr. and A. L. Baker

United States Department of Agriculture1

Abstract

Conclusions: The following conclusions can be made from this analysis:

  1. The high correlation between rate and efficiency of gain is reduced in time-constant populations and this high correlation is applicable only between animals of the same size.
  2. Comparisons of gross efficiency should be made only between animals of the same size.
  3. Selections on gross efficiency in time-constant feeding periods are generally misleading and often erroneous.
  4. In time-constant feeding tests, selections should be made for rate of gain rather than observed gross efficiency.

Footnotes

1 U. S. Range Livestock Experiment Station, Miles City, Montana.






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Copyright © 1944 by the American Society of Animal Science.