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For 1736 Nellore calves in Brazil, body weight at birth and weaning averaged 29.10±0.31 and 154.0±2.4 kg resp. Herd, sire within herd, sex of calf, the contemporary group effect (based on season and year of calving, and management) and age of dam all had a highly significant effect on birth weight, ...

Cardellino, R. A.; Castro, L. F. S.
Revista da Sociedade Brasileira de Zootecnia, 1987, 16, 1, pp 14-27