| Trait | Control | Low | High | |||
| Early | Late | Early | Late | Early | Late | |
| Lamb survival at birth (%) | 100 | 100 | 100 | 100 | 100 | 83.3 |
| Litter size | 1.25 | 1.4 | 1.0 | 1.0 | 1.5 | 1.2 |
| Ewe’s survival (%) | 80 | 100 | 100 | 60 | 80 | 100 |
| Lamb birth weight (kg) | 3.76 | 3.44 | 4.99 | 4.63 | 4.76 | 3.76 |
| Lamb crop/ewe at birth (kg) | 4.7 | 4.8 | 4.99 | 4.63 | 7.14 | 4.51 |
| Lamb weaning weight (kg) | 13.84 | 13.27 | 18.9 | 15.63 | 15.95 | 16.21 |
| Lamb survival at weaning (%) | 100 | 100 | 100 | 66.7 | 50 | 83.3 |