Table 10.
Genetic correlations between growth traits, ultrasound traits, and carcass traits adjusted to a fixed carcass weight endpoint1,2
| BWT | WWT | PWWT | ADG50 | ADG100 | |
|---|---|---|---|---|---|
| FATGR | −0.35 ± 0.06 | −0.14 ± 0.05 | −0.16 ± 0.05 | −0.14 ± 0.05 | −0.12 ± 0.05 |
| SMY | 0.33 ± 0.06 | 0.08 ± 0.05 | 0.09 ± 0.05 | 0.08 ± 0.05 | 0.06 ± 0.06 |
| LEG | −0.13 ± 0.06 | −0.14 ± 0.05 | −0.20 ± 0.05 | −0.13 ± 0.05 | −0.18 ± 0.05 |
| LOIN | −0.25 ± 0.06 | −0.22 ± 0.05 | −0.22 ± 0.05 | −0.21 ± 0.05 | −0.16 ± 0.05 |
| SHOUL | −0.27 ± 0.06 | −0.25 ± 0.05 | −0.27 ± 0.05 | −0.25 ± 0.05 | −0.17 ± 0.05 |
| AVGCONF | −0.24 ± 0.06 | −0.21 ± 0.05 | −0.27 ± 0.05 | −0.21 ± 0.05 | −0.22 ± 0.05 |
| CINDEX | 0.24 ± 0.07 | −0.05 ± 0.06 | −0.07 ± 0.06 | −0.06 ± 0.06 | −0.06 ± 0.06 |
| PRICE | 0.13 ± 0.07 | −0.13 ± 0.06 | −0.13 ± 0.06 | −0.12 ± 0.06 | −0.07 ± 0.06 |
| WTUS | EMDUSa | EMDUSw | FATUSa | FATUSw | |
| FATGR | −0.16 ± 0.14 | 0.05 ± 0.19 | 0.20 ± 0.14 | 0.38 ± 0.14 | 0.64 ± 0.12 |
| SMY | 0.06 ± 0.16 | 0.03 ± 0.21 | −0.02 ± 0.15 | −0.38 ± 0.15 | −0.55 ± 0.14 |
| LEG | −0.26 ± 0.13 | 0.10 ± 0.17 | 0.32 ± 0.12 | 0.14 ± 0.14 | 0.39 ± 0.13 |
| LOIN | −0.24 ± 0.14 | −0.08 ± 0.19 | 0.13 ± 0.14 | 0.18 ± 0.15 | 0.48 ± 0.15 |
| SHOUL | −0.21 ± 0.14 | 0.24 ± 0.19 | 0.40 ± 0.13 | 0.25 ± 0.15 | 0.51 ± 0.14 |
| AVGCONF | −0.20 ± 0.13 | 0.10 ± 0.17 | 0.28 ± 0.12 | 0.25 ± 0.14 | 0.50 ± 0.13 |
| CINDEX | 0.04 ± 0.18 | 0.29 ± 0.22 | 0.27 ± 0.16 | −0.01 ± 0.18 | −0.11 ± 0.17 |
| PRICE | −0.03 ± 0.17 | 0.31 ± 0.22 | 0.32 ± 0.16 | 0.00 ± 0.18 | 0.00 ± 0.17 |
1Correlation coefficients are followed by their approximate standard error.
2ADG50 = pre-weaning average daily gain; ADG100 = post-weaning average daily gain; AVGCONF = average carcass conformation score; BWT = birthweight; CINDEX = carcass price grid value; EMDUS = ultrasonically measured eye muscle depth; FATGR = fat depth at the GR site; FATUS = ultrasonically measured fat depth; LEG = leg carcass conformation score; LOIN = loin carcass conformation score; PRICE = total carcass value; PWWT = post-weaning weight; SHOUL = shoulder conformation score; SMY = predicted saleable meat yield; WTUS = scanning weight; WWT = weaning weight. Ultrasound eye muscle and fat depth measurements adjusted to a constant age (EMDUSa, FATUSa) or scanning weight (EMDUSw, FATUSw).