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Table 1 Parameters (mean ± SD) and coefficients of determination of the growth curves1 for "white" homozygous (B/B), "silver" heterozygous (B/+) and "wild-type" recessive homozygous (+/+) Japanese quail, effects of the family, sex, and genotype on the parameters of individual curves, and comparisons between plumage colour 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/+)

A

179.7 ± 29.2

179.8 ± 19.9

183.5 ± 18.9

0.79

*

***

NS

NS

NS

NS

Bw

191.8 ± 31.4

196.1 ± 21.5

199.3 ± 19.9

0.80

**

***

*

-12.8*

NS

-11.5*

k

0.0376 ± 0.0093

0.0454 ± 0.0063

0.0447 ± 0.0050

0.62

NS

***

**

-0.0067**

NS

-0.0068**

CD2

0.85

0.92

0.93

--

--

--

--

--

--

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  1. 1: Obtained with the monomolecular model: body weight = A-Bw exp(-kt), where A is the asymptotic body weight (g), Bw is the range of body weight from hatching to asymptotic weight, k is the relative rate of growth, and t is the age in days.
  2. 2: CD = coefficient of determination.
  3. *:p < 0.05; **:p < 0.01; ***:p < 0.001; NS: not significant.