| | BF | CONF | ADG | FCR |
|---|
\(\sigma ^2_{g,p}\)
| 0.085 (0.009) | 0.067 (0.011) | 0.0012 (0.0003) | 0.0023 (0.0005) |
\(\sigma _{g,c}^{2}\)
| 0.131 (0.015) | 0.038 (0.009) | 0.0027 (0.0004) | 0.0027 (0.0006) |
\(\sigma _{g,pc}\)
| 0.102 (0.010) | 0.042 (0.009) | 0.0013 (0.0003) | 0.0022 (0.0005) |
\(\rho _{g,pc}\)
| 0.96 (0.07) | 0.83 (0.16) | 0.75 (0.17) | 0.87 (0.18) |
\(h^2_p\)
| 0.22 (0.01) | 0.12 (0.02) | 0.08 (0.02) | 0.09 (0.02) |
\(h^2_c\)
| 0.21 (0.02) | 0.09 (0.02) | 0.15 (0.02) | 0.10 (0.02) |
- Additive genetic parameters for the four traits computed using Eqs. (5), (8) and (9) from model parameter estimates in Table 2. Variance for purebred performance: \(\sigma ^2_{g,p}\), Variance for crossbred performance: \(\sigma ^2_{g,c}\), covariance between purebred and crossbred performances: \(\sigma _{g,pc}\), correlation between purebred and crossbred performances: \(\rho _{g,pc}\), and heritabilities, \(h^2_p=\sigma ^2_{g,p}/(\sigma ^2_{a,p}\bar{\delta G}_p+ \sigma ^2_{d,p}\bar{\delta D_p}+ \sigma ^2_{l,p}+ \sigma ^2_{e,p})\) and \(h^2_c=\sigma ^2_{g,c}/(\sigma ^2_{a,c}\bar{\delta G_c}+ \sigma ^2_{d,c}\bar{\delta D_c}+ \sigma ^2_{l,c}+\sigma ^2_{e,c})\) where \(\bar{\delta G_p},\, \bar{\delta D_p}\) \(\bar{\delta G_c}\) and \(\bar{\delta D_c}\) are averages of diagonal elements in matrices \(\mathbf {G}_p\), \(\mathbf {D}_p\), \(\mathbf {G}_c\), and \(\mathbf {D}_c\), respectively
- BF ultra-sound recorded backfat thickness, CONF overall conformation score, ADG average daily gain, FCR feed conversion ratio
