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.

Bed’hom et al.

Bed’hom et al. BMC Genomics 2012 13:442   doi:10.1186/1471-2164-13-442

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