Table 2.
Effects of family, sex and plumage colour on body weights, feed consumption, egg production and body temperature (mean ± SD) in a 3-week feed trial of 9-week oldlavender(n = 51) and wild-type (n = 41) Japanese quail from 18 full-sib families
|
Trait |
Plumage colour (genotype) |
Percentage of the total variance explained by the model1(R2) |
Significance of the effect of plumage colour in the Full model |
||
|---|---|---|---|---|---|
| Lavender (lav/lav) | Wild-type (lav/+) | Full model | Reduced model | ||
| 64-d BW after 12 h fasting (g) |
173.3 ± 22.2 |
178.6 ± 23.9 |
75 |
73 |
* |
| 85-d BW after 12 h fasting (g) |
181.7 ± 20.1 |
186.5 ± 20.3 |
61 |
59 |
NS |
| Daily feed intake (g) |
24.5 ± 4.3 |
23.0 ± 4.0 |
72 |
65 |
*** |
| BW gain in 3-week feed test (g) |
8.7 ± 11.7 |
6.7 ± 10.0 |
45 |
44 |
NS |
| Egg number2 on 3-week test |
19.5 ± 2.0 |
18.4 ± 3.5 |
27 |
25 |
NS |
| Egg weight1 (g) |
9.8 ± 0.9 |
9.8 ± 1.3 |
62 |
61 |
NS |
| Residual feed intake (g) |
19.2 ± 33.5 |
−22.8 ± 24.4 |
44 |
17 |
*** |
| 85-d body temperature3 after 12 h fasting (°C) | 41.02 ± 0.28 | 41.16 ± 0.27 | 60 | 47 | *** |
1The Full model includes the effects of family, sex and plumage colour, and the Reduced model does not include plumage colour.
2 from 23 lavender and 23 wild-type females.
3 85-d BW was used as a covariable for the analysis of body temperature.
* p ≤ 0.05; *** p ≤ 0.001; NS not significant.