纯系蛋鸡持续受精能力遗传分析
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摘要
本研究以"京红1号"、"京粉1号"配套系母本纯系群体连续2个世代共7 430个个体的实验数据为基础,对母鸡持续受精能力相关性状进行遗传分析,包括入孵蛋数、受精蛋数、受精率、最大连产受精蛋数、有效持续天数和最大持续天数6个性状。结果表明:6个性状的重复力在0.16～0.33,表明这些性状单次度量的代表性有限;遗传力估计值在0.06～0.19,均为低遗传力性状;受精率和受精蛋数的重复力和遗传力估计值在所有性状中最高,鉴于受精率为比率性状,受精蛋数是育种实践中对母鸡持续受精能力进行选育的理想性状;母鸡持续受精能力各性状和早期性状之间相关性较弱,通过早期性状对母鸡持续受精能力进行间接选择并不可行;对受精蛋数和受精率的公鸡效应影响分析后发现,公鸡效应方差占总方差的比例超过11%,因此在模型中不应忽视公鸡效应的影响,否则会导致遗传参数估计出现偏差。
引文
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[8]黎寿丰,赵振华,黄华云,等.基于动物模型REML分析法估计邵伯鸡母系主要孵化性状的遗传参数[J].中国家禽,2010,32(14):19-22.
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[11]Liu,G Q,Zhu J J,Wang Z Y,et al.Analysis of sperm storage ability using duration of fertility in hens[J].Br Poult Sci,2008,49(6):770-775.
[12]黎丽霞,宁中华.输精量和精液稀释对母鸡受精持续时间的影响[J].中国家禽,2017,39(18):7-10.
[2]刘龙,海鹏,孙黍珍,等.影响蛋种鸡人工授精效率的因素分析[J].中国家禽,2010,32(16):46-47.
[3]宁中华,龙红芡.鸡人工授精真的没有竞争力了吗?[J].中国家禽,2013,35(1):3-4.
[4]Sasanami T,Matsuzaki M,Mizushima S,et al.Sperm storage in the female reproductive tract in birds[J].J Reprod Dev,2013,59(4):334-338.
[5]GuL,Sun C,Gong Y,et al.Novel copy number variation of the TGFβ3 gene is associated with TGFβ3 gene expression and duration of fertility traits in hens[J].PLoS One,2017,12(3):e0173696.
[6]Beaumont,C,Brillard J P,Millet N,et al.Comparison of various characteristics of duration of fertility in hens[J].Br Poult Sci,1992,33(3):649-661.
[7]吴晓林,柳小春,施启顺,等.“三黄”鸡采精量和受精率的方差组分估计[J].遗传,1996(2):33-35.
[8]黎寿丰,赵振华,黄华云,等.基于动物模型REML分析法估计邵伯鸡母系主要孵化性状的遗传参数[J].中国家禽,2010,32(14):19-22.
[9]Cheng Y S,Rouvier R,Poivey J P,et al.Selection responses for the number of fertile eggs of the Brown Tsaiya duck(Anas platyrhynchos)after a single artificial insemination with pooled Muscovy(Cairina moschata)semen[J].Genet Sel Evol,2002,34(5):597-611.
[10]Cheng Y S,Rouvier R,Poivey J P,et al.Selection responses in duration of fertility and its consequences on hatchability in the intergeneric crossbreeding of ducks[J].Br Poult Sci,2005,46(5):565-571.
[11]Liu,G Q,Zhu J J,Wang Z Y,et al.Analysis of sperm storage ability using duration of fertility in hens[J].Br Poult Sci,2008,49(6):770-775.
[12]黎丽霞,宁中华.输精量和精液稀释对母鸡受精持续时间的影响[J].中国家禽,2017,39(18):7-10.