J. Anim Sci.
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J. Anim Sci. 1953. 12:771-774.
© 1953 American Society of Animal Science

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Correlations between Grades and Gains of Hereford Cattle at Different Stages of Growth and between Grades at Different Times1

Ralph M. Durham and J. H. Knox

New Mexico Agricultural Experiment Station2

Abstract

Correlations between grades and gains of Hereford cattle at various stages of growth have been obtained. The study included 424 steers from 68 bulls, fed out during a 13-year period, and 59 calves representing two different types of cattle fed out over a 3-year period.

Grade at the beginning of a period tended to be negatively associated or not associated at all with the subsequent gain.

Gain during the fattening period was associated with the subsequent grade.

Yearling grade had a low, but significant, association with carcass grade.

No correlation exists in these data between weaning grade and carcass grade. Possible explanations for this lack of association are presented.


Footnotes

1 Published with the approval of the Director of the New Mexico Agricultural Experiment Station as paper No. 79 in the journal series.

2 Department of Animal Husbandry in cooperation with the Bureau of Animal Industry, U.S.D.A. and the state experiment stations under Western Regional Project W-1 on Beef Cattle Breeding Research.







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Copyright © 1953 by the American Society of Animal Science.