Table 4.

Contribution (SE) of different random effects¹ to the estimation of the traits² in PB (I) and CB (II)

	${\mathit{h}}^2$	$\frac{{\mathit{\sigma }}_{ltr}^2}{{\mathit{\sigma }}_{\mathit{P}}^2}$	$\frac{{\mathit{\sigma }}_{pen}^2}{{\mathit{\sigma }}_{\mathit{P}}^2}$	$\frac{{\mathit{\sigma }}_{co}^2}{{\mathit{\sigma }}_{\mathit{P}}^2}$
I. Purebred
ADG	0.23 (0.01)	0.06 (0.01)	0.12 (0.01)	0.11 (0.01)
ALDG	0.23 (0.01)	0.08 (0.01)	0.14 (0.01)	0.08 (0.01)
ADFI	0.23 (0.02)	0.05 (0.01)	0.14 (0.01)	0.16 (0.01)
LD	0.36 (0.01)	0.05 (0.01)	0.09 (0.01)	0.08 (0.01)
PD	0.22 (0.01)	0.06 (0.01)	0.11 (0.01)	0.13 (0.01)
MD	0.35 (0.01)	0.03 (0.01)	0.06 (0.01)	0.10 (0.01)
BF	0.47 (0.01)	0.04 (0.01)	0.05 (0.01)	0.06 (0.01)
FCR	0.17 (0.01)	0.04 (0.01)	0.18 (0.01)	0.12 (0.01)
REI	0.16 (0.01)	0.04 (0.01)	0.17 (0.01)	0.15 (0.01)
RFI	0.15 (0.01)	0.04 (0.01)	0.18 (0.01)	0.18 (0.01)
II. Crossbred
ADG	0.26 (0.01)	0.05 (0.01)	0.08 (0.01)	0.10 (0.01)
ALDG	0.28 (0.01)	0.05 (0.01)	0.08 (0.01)	0.10 (0.01)
ADFI	0.28 (0.03)	0.05 (0.01)	0.19 (0.01)	0.11 (0.02)
LD	0.36 (0.03)	0.03 (0.01)	0.07 (0.01)	0.10 (0.01)
PD	0.33 (0.03)	0.05 (0.01)	0.07 (0.01)	0.12 (0.02)
MD	0.24 (0.02)	0.01 (0.01)	0.01 (0.01)	0.03 (0.01)
BF	0.43 (0.02)	0.03 (0.01)	0.02 (0.01)	0.02 (0.01)
FCR	0.15 (0.02)	0.04 (0.01)	0.22 (0.01)	0.18 (0.03)
REI	0.16 (0.02)	0.02 (0.01)	0.21 (0.01)	0.17 (0.02)
RFI	0.19 (0.02)	0.02 (0.01)	0.23 (0.01)	0.18 (0.03)

¹ $h^2$ is the heritability; ${\sigma }_{\text{ltr}}^2$ is the variance of the common litter; ${\sigma }_{\text{pen}}^2$ is the variance of the contemporary pen; ${\sigma }_{\text{co}}^2$ is the variance of the contemporary compartment; ${\sigma }_P^2$ is the phenotypic variance.