Table 2.

Variance components estimated in single-trait model

	Genetic variance	Permanent environment variance	Residual variance	Heritability	Repeatability
Prebreeding BCS	0.040 (5.20 × 10−2)	0.63 × 10−4 (0.17 × 10−3)	0.18 (5.39 × 10−2)	0.18	0.18
Precalving BCS	0.030 (8.05 × 10−2)	0.011 (6.53 × 10−2)	0.12 (4.00 × 10−2)	0.20	0.26