Table 7.
Mean accuracy of EBV for purebred and crossbred performance obtained using single-step terminal-cross models and its difference from the mean accuracy (in parentheses) obtained using pedigree-based terminal-cross models (in parentheses)
| Trait | PB performance | CB performance | ||||
|---|---|---|---|---|---|---|
| Sires | Phenotyped candidates | Unphenotyped candidates | Sires | Phenotyped candidates | Unphenotyped candidates | |
| ADG | 0.660 (0.110) | 0.574 (0.026) | 0.420 (0.059) | 0.697 (0.046) | 0.509 (0.181) | 0.413 (0.084) |
| FCR | 0.732 (0.113) | 0.659 (0.020) | 0.489 (0.054) | 0.745 (0.065) | 0.614 (0.259) | 0.477 (0.121) |
| LM | 0.716 (0.046) | 0.696 (0.007) | 0.490 (0.023) | 0.724 (0.041) | 0.535 (0.185) | 0.434 (0.084) |
| pH | 0.745 (0.133) | 0.638 (0.026) | 0.484 (0.068) | 0.750 (0.080) | 0.624 (0.273) | 0.4807 (0.130) |
| DL | 0.768 (0.046) | 0.768 (0.005) | 0.535 (0.024) | 0.741 (0.119) | 0.678 (0.371) | 0.493 (0.185) |
| IMF | 0.688 (0.105) | 0.625 (0.019) | 0.450 (0.053) | 0.730 (0.040) | 0.547 (0.184) | 0.442 (0.078) |
PB purebred, CB crossbred, ADG growth rate between end and beginning of the control period, FCR feed conversion ratio, LM % of lean meat, pH pH longissimus dorsi, DL drip loss, IMF intramuscular fat