Table 2.
Results of the linear mixed model analyses in which body mass and tarsus length were examined in relation to maternal treatment, laying order and offspring sex.
| sources of variation | d.f. | F | p-value |
|---|---|---|---|
| body mass at hatching | |||
| maternal immunization | 1,28.7 | 2.23 | 0.146 |
| laying order | 1,107 | 22.16 | <0.0001 |
| sex | 1,108 | 1.80 | 0.182 |
| body mass at fledging | |||
| maternal immunization | 1,16.6 | 1.99 | 0.176 |
| laying order | 1,91.6 | 1.84 | 0.179 |
| sex | 1,99 | 2.03 | 0.156 |
| maternal immunization × sex | 1,94.6 | 4.05 | 0.047 |
| tarsus length at fledging | |||
| maternal immunization | 1,98.9 | 0.37 | 0.542 |
| laying order | 1,102 | 0.33 | 0.567 |
| sex | 1,107 | 1.66 | 0.200 |
| maternal immunization × sex | 1,108 | 13.55 | 0.0004 |