J. Anim Sci.
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J. Anim Sci. 1989. 67:2841-2847.
© 1989 American Society of Animal Science
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Crossbreeding among British and Continental European Dual-Purpose Breeds in the Coastal Pacific Northwest

William D. Hohenboken1 and Dale W. Weber

Oregon State University2, Corvallis 97331

Abstract

From 1979 through 1987, British breed and crossbred cows were mated to Simmental, Pinzgauer or Tarentaise bulls or to Hereford-Angus crossbred bulls. Beginning in 1982, continental European crossbred females also entered the herd, to be mated for first calving to Hereford-Angus or Angus bulls and as cows to continental European or Hereford-Angus bulls. In progeny of British breed and crossbred cows, dam breed effects on birth and weaning weight were not important, but continental European crossbred calves were heavier than British crossbred contemporaries at birth and weaning. Pinzgauer- and Simmental-sired calves were heavier at birth than Tarentaise crosses, but calves sired by each of the continental breeds had similar weaning weights. Maternal heterosis was greater than direct heterosis effects on weaning weight (8% vs 5%), but only direct heterosis (13%) influenced birth weight. Within progeny of continental European crossbred cows, calves with a Tarentaise maternal grandsire were lighter at birth, with no significant difference among other maternal grandsire breeds. Maternal breed effects on weaning weight were not significant. Nevertheless, in contemporary years, continental European crossbred cows reared calves that were 10% heavier than calves reared by British crossbred cows. Pacific Northwestern cattle producers could achieve substantial increases in weaning weight from introducing inheritance from continental European dual-purpose breeds into cow herds and calf crops of British ancestry.

Footnotes

1 Current address: Dept. of Anim. Sci., Virginia Polytechnic Institute and State Univ., Blacksburg 24061.

2 Tech. paper no. 8746, Oregon Agric. Exp. Sta.






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