Table 9 Selection differentials of recorded multiplier breeding rams for profit traits (units/year) in the different scenarios
Trait (abbreviation) | Unit | Pheno + GSa | Pheno + parentage | Phenotypic selection | Pheno + GS + open | Pheno + parentage + open | GS onlyb |
|---|---|---|---|---|---|---|---|
Carcass weight (CWT) | kg | 0.674 | 0.598 | 0.293 | 0.665 | 0.581 | 0.645 |
Weaning weight (WWT) | kg | 0.868 | 0.759 | 0.334 | 0.857 | 0.739 | 0.835 |
Number of lambs born (NLB) | Lambs | 0.053 | 0.020 | 0.016 | 0.054 | 0.023 | 0.056 |
Ewe mature weight (EWT) | kg | 0.548 | 0.698 | 0.297 | 0.540 | 0.678 | 0.342 |
Ewe body condition score (BCS) | Score | 0.058 | 0.042 | 0.000 | 0.057 | 0.041 | 0.032 |
Survival maternal (SURm) | Lambs | 0.008 | 0.010 | 0.000 | 0.010 | 0.012 | 0.000 |
Weaning weight maternal (WWTm) | kg | 0.090 | 0.040 | 0.000 | 0.093 | 0.047 | 0.087 |
Stayability (Stay) | Binary | 0.012 | 0.018 | 0.000 | 0.010 | 0.018 | 0.001 |
Lamb survival (SUR) | Lambs | 0.003 | 0.004 | 0.000 | 0.003 | 0.004 | 0.000 |