INFLUENCE OF CALF GENETIC TYPE ON PREWEANING TRAITS UNDER COMMERCIAL BEEF CATTLE CONDITIONS
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Birth and weaning weight data were evaluated on 1/2 Simmental (SH, SA), 1/2 Maine-Anjou (MH, MA), 3/4 Simmental (S.SH, S.SA) and 3/4 Maine-Anjou (M.MH, M.MA) calves. For birth weight, 1/2 Simmental calves were lighter (P < 0.01) than 1/2 Maine-Anjou calves, and calves from Hereford cows were heavier (P < 0.01) than calves from Angus cows. Also, S.SH calves were heavier (P < 0.01) than S.SA calves. For weaning weight, 3/4 Simmental calves were heavier (P < 0.01) than 3/4 Maine-Anjou calves, and 1/2 Simmental and Maine-Anjou calves were lighter (P < 0.01) than 3/4 Simmental and Maine-Anjou calves. Key words: Calf genetic types, grading-up, beef cattle
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SEX OF CALF AND AGE OF DAM ADJUSTMENTS FOR SOME PERFORMANCE TRAITS IN TWO POPULATIONS OF BEEF CATTLE
1982 ◽
Vol 62
(3)
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pp. 699-708
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2011 ◽
Vol 50
(No. 1)
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pp. 14-21
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2009 ◽
Vol 87
(10)
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pp. 3089-3096
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1993 ◽
Vol 73
(4)
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pp. 971-975
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1991 ◽
Vol 71
(2)
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pp. 301-309
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