Selection response and estimation of the genetic parameters for multidimensional measured breast meat yield related traits in a long-term breeding Pekin duck line.
Selection response and estimation of the genetic parameters for multidimensional measured breast meat yield related traits in a long-term breeding Pekin duck line.
复制标题
长期繁育北京鸭品系多维胸肉产量相关性状的选择响应及遗传参数估计
DOI：
10.5713/ajas.17.0837
复制
发表时间：
2018-10
期刊：
影响因子：
--
通讯作者：
Zhou Z
中科院分区：
文献类型：
--
作者：
Xu Y;Hu J;Zhang Y;Guo Z;Huang W;Xie M;Liu H;Lei C;Hou S;Liu X;Zhou Z
目的评价北京鸭胸肉相关性状的遗传参数及育种价值。选择反应还通过使用超声波乳房肌肉厚度（BMT）测量结合胸部宽度（BB）和龙骨长度（KL）值来确定。方法 分析性状为胸肉重量（BMW）、体重（BW）、胸肉百分比（BMP）和胸肉三个参数（BB、KL、BMT）。这些测量结果是根据胸肉重量对从 10 代中选出的 15,781 只北京鸭进行的研究得出的。估计遗传参数和育种价值以分析育种过程。结果 BMW 和 BMP 的估计遗传力中等（分别为 0.23 和 0.16），而 BW 的遗传力较高（0.48）。其他性状如 BB、KL 和 BMT 表明遗传力中等，范围在 0.11 到 0.28 之间。发现 BMW 与 BW 和 BMP 具有显着的表型相关性（p<0.05），并且 BMW 与 BW 和 BMP 的遗传相关性呈正且高（分别为 0.83 和 0.66）。值得注意的是，宝马与所有其他特征都呈正相关。在选择过程中，所有性状的代际平均估计育种值大幅增加，这表明鸭子在 10 代育种后对胸肉产量的增加做出了有效的反应。结论结果表明，通过遗传选择，鸭的BMW具有提高的潜力，对BW和BMP有积极影响。超声BMT结合BB和KL的测量在胸肉高产鸭养殖过程中被证明是必要和有效的。
Objective This study was conducted to estimate the genetic parameters and breeding values of breast meat related traits of Pekin ducks. Selection response was also determined by using ultrasound breast muscle thickness (BMT) measurements in combination with bosom breadth (BB) and keel length (KL) values. Methods The traits analyzed were breast meat weight (BMW), body weight (BW), breast meat percentage (BMP) and the three parameters of breast meat (BB, KL, and BMT). These measurements were derived from studying 15,781 Pekin ducks selected from 10 generations based on breast meat weight. Genetic parameters and breeding value were estimated for the analysis of the breeding process. Results Estimated heritability of BMW and BMP were moderate (0.23 and 0.16, respectively), and heritability of BW was high (0.48). Other traits such as BB, KL, and BMT indicated moderate heritability ranging between 0.11 and 0.28. Significant phenotypic correlations of BMW with BW and BMP were discovered (p<0.05), and genetic correlations of BMW with BW and BMP were positive and high (0.83 and 0.66, respectively). It was noted that BMW had positive correlations with all the other traits. Generational average estimated breeding values of all traits increased substantially over the course of selection, which demonstrated that the ducks responded efficiently to increased breast meat yield after 10 generations of breeding. Conclusion The results indicated that duck BMW had the potential to be increased through genetic selection with positive effects on BW and BMP. The ultrasound BMT, in combination with the measurement of BB and KL, is shown to be essential and effective in the process of high breast meat yield duck breeding.