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首页> 外文期刊>African Journal of Biotechnology >Genetic parameters and consequences of selection for short-term egg production traits in Japanese quail in a tropical environment
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Genetic parameters and consequences of selection for short-term egg production traits in Japanese quail in a tropical environment

机译：热带环境中日本鹌鹑短期产卵性状的遗传参数和选择结果

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The current study was conducted to investigate the effect of?selection for short-term (30 days) egg production trait in Japanese quail (Coturnix coturnix? japonica)?over three generations (Go, G1?and G2). Heritabilities were estimated using the mixed model least squares and maximum likelihood computer programme. Fertility percentages of 76.29, 70.06, and 65.98% and hatchability percentage of 57.89, 63.75 and 69.12% were obtained for Go, G1?and G2?generations, respectively. The average egg weight for G0, G1?and G2?generations were 11.41, 10.84 and 9.33 g, respectively. Body weight at first egg (BWTFE) was 135.61, 150.02 and 154.64 g for the Go, G1and G2?generations respectively. Egg number differed significant (p < 0.05) between generations. Heritability estimates for egg number, egg weight and BWTFE studied were low to moderate and ranged from 0.11 to 0.48. Realized genetic gains of 1.60 and 2.86 eggs were obtained for egg number while realized correlated responses of -0.18 and -1.17 g for egg weight and -6.03 and -15.14 g for BWTFE were obtained respectively in G0?and G1?generations. The experiment indicates that mass selection improved egg number in Japanese quail.
机译：进行本研究以调查选择三代（Go，G1和G2）日本鹌鹑（Coturnix coturnix？japonica）短期（30天）产蛋性状的影响。使用混合模型最小二乘和最大似然计算机程序估计遗传力。 Go，G1？和G2？代的生育率分别为76.29、70.06和65.98％，孵化率分别为57.89、63.75和69.12％。 G0代，G1代和G2代的平均蛋重分别为11.41、10.84和9.33g。 Go，G1和G2α世代的第一卵体重（BWTFE）分别为135.61、150.02和154.64 g。几代之间的卵数差异显着（p <0.05）。研究的卵数，卵重和BWTFE的遗传力估计值低至中等，范围为0.11至0.48。在G0代和G1代中分别获得了1.60和2.86个鸡蛋的遗传增益，而蛋重的相关响应分别为-0.18和-1.17g，BWTFE分别为-6.03和-15.14g。实验表明，大量选择提高了日本鹌鹑的卵数。

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