J Chavaz

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Beef herds in Britain recorded by the Meat and Livestock Commission (MLC) produce less than 90 live calves per 100 cows mated. Reproductive efficiency is of paramount importance to the economic performance of beef suckler herds. Herds with sub-optimal reproductive efficiency will almost invariably have an extended calving period. With a compact calving, a(More)
Data of I 261 heifer daughters sired by 51 testing bulls of a Simmental population were used to estimate population parameters for the direct and maternal components of calving performance and a subset for analyzing interior pelvic measurements. Heritability estimates for the direct and maternal components in the order of h d 2 = .10 to .15 and hm = .20 to(More)
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