for 1,456 mashona calves sired by 88 bulls heritability estimates from paternal half-sibs were 0.44 +/- 0.11 for birth weight , 0.38 +/- 0.10 for 205-day weaning weight , 0.39 +/- 0.10 for 18-month weight , 0.37 +/- 0.10 for pre-weaning daily liveweight gain and 0.41 +/- 0.11 for daily gain from weaning to 18 months of age .
C0005612
birth weight
C0005910
weight