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Herd, year of birth, sex, season of birth and interaction effects significantly affected birth and weaning weights in Bonsmara calves from 6 herds, studied over 6 yr. The birth weight of ♂♂ and ♀♀ averaged 34.37±1.27 and 32.05±0.60 kg resp., and weaning weight 194.61±3.99 and 184.01±2.28 kg. The...

Zyl, J. G. E. van; Venter, H. A. W.; Groeneveld, H. T.
South African Journal of Animal Science, 1987, 17, 4, pp 185-187