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Table 2 Effects of family, sex, and plumage colour genotype (B/B, B/+, and +/+) on body weights, feed intake, egg production and body temperature (mean ± SD) of 9-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/+)

64-d BW after 12 h fasting (g)

148.5 ± 20.2

154.5 ± 15.6

158.2 ± 15.1

0.71

*

***

**

-14.9***

NS

-11.9**

85-d BW after 12 h fasting (g)

159.8 ± 23.5

161.4 ± 16.6

164.5 ± 16.2

0.73

**

***

*

-11.3**

NS

-8.4*

Daily feed intake (g)

20.5 ± 5.2

21.1 ± 4.0

22.4 ± 5.1

0.78

*

***

**

-3.43**

NS

-2.45*

BW gain on 3-wk feed test (g)

11.3 ± 7.4

6.9 ± 6.6

6.3 ± 5.8

0.26

NS

NS

NS

NS

NS

NS

Egg number on 3-wk test

17.0 ± 6.1

19.1 ± 2.9

18.9 ± 4.3

0.37

NS

-

NS

NS

NS

NS

Egg weight (g)

9.87 ± 0.87

9.61 ± 0.71

9.73 ± 0.52

0.59

*

-

NS

NS

NS

NS

64-d body temperature (°C)

40.82 ± 0.40

41.16 ± 0.32

41.32 ± 0.29

0.50

NS

NS

***

-0.53***

-0.20**

-0.33**

85-d body temperature (°C)

40.67 ± 0.25

41.23 ± 0.35

41.34 ± 0.33

0.51

NS

NS

***

-0.57***

NS

-0.44***

90-d body temperature (°C)

41.19 ± 0.36

41.62 ± 0.35

41.74 ± 0.36

0.39

NS

*

*

-0.44**

NS

-0.34*

  1. *:p < 0.05; **:p < 0.01; ***:p < 0.001; NS: not significant.