Table 1.
Effects included in models to evaluate birth weight (BW), weaning weight (WW), yearling weight (YW), teat score (TS9, TS7, TS2), and udder score (US9, US7, US2)1
| Trait | CG2 | Breed | Sex | MAT3 | MPE4 | Pgrp5 | Days6 | Days7 |
|---|---|---|---|---|---|---|---|---|
| BW | x | x | x | x | x | |||
| WW | x | x | x | x | x | |||
| YW | x | x | x | x | ||||
| Teat score (TS9, TS7, TS2) | x | x | x | x | ||||
| Udder score (US9, US7, US2) | x | x | x | x | x |
1TS9 = teat score on a 1 to 9 scale; US9 = udder score on a 1 to 9 scale; TS7 = teat score on a 1 to 7 scale; US7 = udder score on a 1 to 7 scale; TS2 = teat score on a 1 to 2 binary scale; US2 = udder score on a 1 to 2 binary scale; x = significant (P < 0.05) and included in the model for the trait.
2CG = contemporary group as random effect.
3MAT = maternal additive genetic effect as random effect.
4MPE = maternal permanent environmental effect as random effect.
5Pgrp = parity group as fixed effect.
6Days = days as covariate with linear effect.
7Days = days as covariate with quadratic effect.