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Journal of Animal Science, Vol 78, Issue 9 2253-2256, Copyright © 2000 by American Society of Animal Science

EVALUATION STUDIES

Evaluation of crossbred calf and cow types for the coastal plain of North Carolina

A. Pala, O. W. Robison and R. L. McCraw
Department of Animal Science, North Carolina State University, Raleigh 27695-7621, USA.

Data in this experiment consisted of 418 lactation records, and weaning and birth weight records from 600 crossbred calves. The traits evaluated included birth weight, weaning weight, weaning weight per cow exposed, weaning weight per weight of cow, weaning weight per weight of cow exposed, and predicted milk yield. Angus, Brangus, and Gelbvieh sires were mated to purebred Hereford cows. Yearling and 2-yr-old Angus-Hereford, Brangus-Hereford, and Gelbvieh-Hereford daughters then were bred to Polled Hereford bulls (Data Set 2). Later-parity Angus-Hereford, Brangus-Hereford, and Gelbvieh-Hereford daughters were mated to Salers or Simmental sires (Data Set 3). Differences between Gelbvieh- and Brangus-sired calves or Gelbvieh-Hereford and Brangus-Hereford daughters were never significant for weaning weight, birth weight, or milk yield. Angus crosses had the lowest weaning weight, birth weight, and milk yield, but the highest kilograms of calf weaned per cow exposed in all data sets. Angus-Hereford and Brangus-Hereford dams had higher weaning weight per weight of cow exposed than Gelbvieh-Hereford dams (P < .01) in Data Set 3. There were no other significant differences related to cow weight.


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W. E. Wyatt, T. D. Bidner, P. E. Humes, D. E. Franke, and D. C. Blouin
Cow-calf and feedlot performances of Brahman-derivative breeds
J Anim Sci, December 1, 2002; 80(12): 3037 - 3045.
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