Table 1.

Genetic parameter estimates (ĥ², ${\sigma }_{\text{g}}^2$, ${\sigma }_{\widehat{\text{g}}}^2$ and ${\sigma }_{\text{EBV}}^2$), prediction accuracies (ρ̂_gĝ), and linear regression coefficients (β̂_y,x) for Warner-Bratzler shear force and overall temperament at weaning for 4 models¹.

	Family structure fixed effect included2			Family structure fixed effect excluded2
	BayesC (π = 0)	BayesC (π̃)	BayesB (π̃)	BayesC (π = 0)	BayesC (π̃)	BayesB (π̃)	Animal model
Warner-Bratzler shear force
ĥ2	0.155	0.136	0.234	0.138	0.148	0.236	0.055
${\sigma }_{\text{g}}^2$	0.064	0.056	0.097	0.057	0.061	0.097	0.023
${\sigma }_{\widehat{\text{g}}}^2$	0.054	0.047	0.084	0.049	0.052	0.085	0.020
${\sigma }_{\text{EBV}}^2$	0.011	0.009	0.023	0.010	0.012	0.026	0.002
ρ̂gĝ	0.787	0.795	0.775	0.841	0.843	0.823	0.717
β̂y,x	4.157	4.610	3.030	4.359	4.115	2.886	9.326
Overall temperament at weaning
ĥ2	0.210	0.206	0.227	0.278	0.274	0.271	0.350
${\sigma }_{\text{g}}^2$	0.893	0.876	0.965	1.181	1.164	1.154	1.487
${\sigma }_{\widehat{\text{g}}}^2$	0.740	0.721	0.802	1.025	1.010	1.004	1.313
${\sigma }_{\text{EBV}}^2$	0.182	0.193	0.232	0.558	0.562	0.563	0.629
ρ̂gĝ	0.671	0.702	0.698	0.918	0.923	0.918	0.862
β̂y,x	2.996	2.885	2.646	1.810	1.782	1.755	1.916

¹ĥ² is the estimate of heritability, where ĥ² for the Bayesian models is the posterior mean of the genomic heritability, ${\sigma }_{\text{g}}^2$ is the additive genetic variance calculated as ${\widehat{h}}^2\times {\sigma }_{\text{p}}^2$, which provides an estimate of what the additive genetic variance is expected to be in that population for the given trait. ${\sigma }_{\text{p}}^2=0.413$ or 4.253 for Warner-Bratzler shear force or overall temperament at weaning, respectively, and is the estimate of phenotypic variance from the data. ${\sigma }_{\widehat{\text{g}}}^2$ is the posterior mean or variance estimate of additive genetic variance from the training potulation calculated in that respective analysis. ${\sigma }_{\text{EBV}}^2$ is the variance of the estimated breeding values estimated using either Bayesian or animal model procedures, where π̃ = 0.995 or 0.997 for Warner-Bratzler shear force or overall temperament at weaning, respectively, using genomic information in Bayesian models.

²Family structure fixed effect refers to family nested within sire or type of cross (an effect based upon the combination of sire and dam breeds, n = 12) for overall temperament at weaning or Warner-Bratzler shear force, respectively.