日本鹌鹑（Coturnix coturnix japonica）屠宰和胴体性状的遗传参数。

Genetic parameters of slaughter and carcase traits in Japanese quail (Coturnix coturnix japonica).

Kafkas University, Veterinary Faculty, Department of Animal ScienceKars, Turkey.

Br Poult Sci. 2011 Apr;52(2):169-72. doi: 10.1080/00071668.2010.549670.

Abstract

Genetic parameters of slaughter and carcase traits were estimated for 5-week-old Japanese quail reared under the one-to-one sire and dam pedigree recorded system. Data were analysed using restricted maximum likelihood (REML) with relationship matrix. Records of 1244 animals from 119 sires and 156 dams were analysed. 2. An individual animal model was used which had the animals' genetic effect as the only random factor. Heritability and standard errors of slaughter, cold carcase, breast, leg, wing, others, liver weights and dressing percentage were 0·40 ± 0·07, 0·55 ± 0·07, 0·58 ± 0·07, 0·54 ± 0·07, 0·49 ± 0·07, 0·42 ± 0·06, 0·13 ± 0·04 and 0·21 ± 0·05 respectively. Moderate to high heritability for most of the studied traits suggested that selection to increase or decrease these traits will be successful. 3. The strongest genetic correlation was found between slaughter, carcase and breast weights (0·97-0·87). These high genetic correlations provide an opportunity to select for breast weight on the basis of 5-week weight. 4. It can be concluded that carcase weight and 5-week weight of quail can be included in a selection index to increase the weights of valuable carcass parts.

摘要

在一对一的父系和母系记录系统下饲养的 5 周龄日本鹌鹑的屠宰和胴体性状的遗传参数进行了估计。使用基于关系矩阵的约束最大似然法（REML）进行了数据分析。对来自 119 个父系和 156 个母系的 1244 只动物的记录进行了分析。2. 使用个体动物模型，该模型仅将动物的遗传效应作为唯一的随机因素。屠宰、冷胴体、胸部、腿部、翅膀、其他、肝脏重量和屠体率的遗传力和标准误差分别为 0.40 ± 0.07、0.55 ± 0.07、0.58 ± 0.07、0.54 ± 0.07、0.49 ± 0.07、0.42 ± 0.06、0.13 ± 0.04 和 0.21 ± 0.05。大多数研究性状的遗传力适中至较高，表明选择增加或减少这些性状将是成功的。3. 研究发现，屠宰、胴体和胸部重量之间存在最强的遗传相关性（0.97-0.87）。这些高度遗传相关性为基于 5 周龄体重选择胸部重量提供了机会。4. 可以得出结论，鹌鹑的胴体重量和 5 周龄体重可以包含在选择指数中，以增加有价值的胴体部分的重量。