J. Anim Sci.
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J. Anim Sci. 1976. 42:1375-1380.
© 1976 American Society of Animal Science
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Comparison of Charolais-Crossbred and Angus Yearling Steers Finished on Pasture

C.G. Olentine, Jr., N.W. Bradley, J.A. Boling and W.G. Moody

University of Kentucky, Lexington 405061 ,2,

Abstract

A trial utilizing 18 Charolais-crossbred and 18 Angus yearling steers was conducted to determine the effects of breed and length of finishing in a pasture-corn supplementation system of finishing on growth, carcass, and tenderness variables. Charolais-crossbred steers were observed to have significantly higher average daily gains (P<.05), ribeye areas (P<.05), and carcass weights (P<.01) than the Angus steers. Angus steers had significantly higher marbling scores (P<.01), fat thickness (P<.05), and quality grade (P<.01). By lengthening the finishing period from 153 to 223 days, average daily gains were significantly decreased (P<.001), and carcass weights, fat thickness, and yield grades were significantly increased. Significant interactions between breed and length of finishing were observed for average daily gain (P<.01) and carcass weight (P<.05). Physical separation of the 9–10–llth rib section indicated Angus steers were significantly fatter (P<.01) than the Charolais-crossbred steers. Tenderometer readings failed to indicate significant breed or length of finishing differences while Warner-Bratzler shear values indicated that Angus steers were significantly (P<.05) more tender than the Charolais-crossbred steers.

Footnotes

1 Department of Animal Sciences.

2 This paper (75–5–74) is published with the approval of the Director of the Kentucky Agricultural Experiment Station.






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Copyright © 1976 by the American Society of Animal Science.