Table 3.
Effects of genes of the major histocompatibility complex I (MHC I) and II class (MHC II), litter size and age period on the number of live kittens and average juvenile body weight in domestic cat.
| Predictors | Statistics |
|---|---|
| Number of surviving kittens | |
| Intercept | B = −0.74 ± 0.95, z = 0.76, p = 0.45 |
| Age | B = 0.46 ± 0.36, z = 1.24, p = 0.22 |
| MHC I | B = 2.62 ± 0.99, z = 2.55, p = 0.01 |
| MHC II | B = −1.41 ± 0.7, z = 1.94, p = 0.05 |
| Litter size | B = 0.74 ± 0.12, z = 6.13, p < 0.0001 |
| Age/Litter size | B = −0.28 ± 0.09, z = 2.8, p = 0.005 |
| Number of alive kittens at birth | |
| Intercept | B = −0.84 ± 0.64, z = 1.28, p = 0.2 |
| Litter size | B = 0.74 ± 0.09, z = 8.16, p < 0.0001 |
| MHC I | B = 2.55 ± 0.82, z = 3.0, p = 0.003 |
| MHC II | B = −1.23 ± 0.53, z = 2.23, p = 0.02 |
| Number of alive kittens at the 60th day of age | |
| Intercept | B = 0.07 ± 1.45, z = 0.05, p = 0.96 |
| Litter size | B = 0.46 ± 0.14, z = 3.14, p = 0.002 |
| MHC I | B = 2.52 ± 1.27, z = 1.92, p = 0.05 |
| MHC II | B = −1.55 ± 0.99, z = 1.52, p = 0.13 |
B and SE to model-averaged parameter estimates and standard errors in linear mixed-effect models. Litter identity was fitted as a random term in all LMMs. All effects were significant (p < 0.05).