Table 3.
Effects of family, sex, and plumage colour on gross body composition (mean ± SD) of 6-month 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 | ||
| 6-month body weight (g) |
187.3 ± 21.1 |
194.3 ± 22.1 |
67 |
64 |
* |
| 6-month body temperature2 (°C) |
40.89 ± 0.35 |
41.03 ± 0.26 |
52 |
45 |
*** |
| Carcass weight (g) |
179.6 ± 19.8 |
187.3 ± 21.0 |
65 |
61 |
* |
| Abdominal adipose tissue3 (g) |
4.20 ± 2.14 |
4.06 ± 1.99 |
72 |
71 |
NS |
|
Pectoralis muscles3,4 (g) |
12.7 ± 1.4 |
14.0 ± 1.7 |
83 |
76 |
*** |
| Liver weight3 (g) | 4.29 ± 2.03 | 4.10 ± 1.62 | 91 | 89 | *** |
1 The Full model includes the effects of family, sex and plumage colour, and the Reduced model does not include plumage colour.
2 Live body weight was used as a covariable for the analysis of body temperature of 6-month fed quail.
3 Carcass weight was used as a covariable for the analyses of abdominal adipose tissue, breast muscle weight, liver weight, and heart weight.
4 Total weight of the right pectoralis major and pectoralis minor muscles.
*: p ≤ 0.05; ***: p ≤ 0.001; NS: not significant.