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Table 3 Effects of family, sex and plumage colour genotype (B/B, B/+, and +/+) on gross body composition (mean ± SD) of 24-week old Japanese quail, and comparisons between genotypes

From: The "silver" Japanese quail and the MITF gene: causal mutation, associated traits and homology with the "blue" chicken plumage

Trait

Genotype

Anova

Significance of main effects

Contrast

 

White

( B / B )

Silver

( B /+)

Wild-type

(+/+)

R 2

Family

Sex

Genotype

( B / B )-(+/+)

( B /+)

-(+/+)

( B / B )-(B/+)

Carcass weight (g)

159.8 ± 27.9

163.2 ± 19.4

168.3 ± 18.7

0.80

**

***

**

-16.6**

-6.7*

NS

Abdominal adipose tissue1 (g)

2.3 ± 3.2

1.4 ± 0.9

1.5 ± 1.3

0.69

NS

***

*

1.5**

NS

1.2**

Pectoralis muscle weight1,2 (g)

11.7 ± 2.2

13.0 ± 1.5

13.4 ± 1.6

0.79

NS

NS

**

-1.9***

NS

-1.6***

Liver weight1 (g)

3.4 ± 1.1

3.6 ± 1.4

3.5 ± 1.0

0.77

NS

***

NS

NS

NS

NS

Heart weight1 (g)

1.2 ± 0.2

1.4 ± 0.2

1.5 ± 0.2

0.61

NS

NS

*

-0.2**

NS

-0.2**

Tibia weight (g)

0.91 ± 0.19

0.72 ± 0.10

0.70 ± 0.08

0.66

***

***

***

0.17***

NS

0.15***

  1. 1:Carcass weight was used as a covariable for the analyses of abdominal adipose tissue, pectoralis muscle weight, liver weight, and heart weight.
  2. 2:Total weight of the right pectoralis major and pectoralis minor muscles.
  3. *:p < 0.05; **:p < 0.01; ***:p < 0.001; NS: not significant.