Table 3.
The fixed effects used in the models for traits.
| Traits | Sex | Birth type | s_t | h_y_m | Dam age |
|---|---|---|---|---|---|
| BWT | ✓ | ✓ | ✓ | ✓ | |
| WWT | ✓ | ✓ | ✓ | ||
| ADG | ✓ | ✓ | ✓ | ||
| KR | ✓ | ✓ | ✓ | ✓ |
BWT, birth weight; ADG, average daily gain from birth to weaning; WWT, weaning weight; KR, Kleiber ratio (ADG/WWT 0.75) from birth to weaning; s_t, A combination of different levels of sex and birth type; h_y_m:A combination of the group, year, and month at birth.