J. Anim Sci.
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J. Anim Sci. 1943. 2:152-156.
© 1943 American Society of Animal Science
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Influence of the Sire on the Birth Weight of Lambs

C. M. Kincaid1

Virginia Agricultural Experiment Station,2

Abstract

  1. Birth weights of lambs sired by Hampshire and Southdown rams were compared in a switchback trial.
  2. An average annual increase of .63 pounds in birth weight of lambs as the ewe increased in age from two to six years was observed. No significant departure from linearity was shown by the data.
  3. Lambs sired by Hampshire rams average 1.05 pounds heavier at birth than those sired by Southdowns, the difference being highly significant.

Footnotes

1 The author is now research associate, Iowa Agric. Exp. Sta., Ames, Iowa.

2 Blacksburg, Va.






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Copyright © 1943 by the American Society of Animal Science.