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Position: Home > Articles > THE ESTIMATION OF GENETIC PARAMETERS FOR MAJOR MILK PRODUCTION TRAITS OF BLACK AND WHITE COWS IN WUHAN Journal of Huazhong Agricultural University 1985 (4) 63-70

武汉市黑白花奶牛主要数量性状遗传参数的估测

作者：

邹木兰;熊加平;章天骐;金勇;喻传洲

单位：

华中农学院

摘要：

遗传参数是各种遗传信息的定性、定量指标。它对于制定正确的选种方法、预测选择效果,制定综合选择指数以及估计育种值等都具有重要意义。武汉地区的黑白花奶牛已有20余年的发展历史,基本上能适应本地区冬季湿冷、夏季炎热的特殊环境。但对牛群诸性状尚缺乏系统的研究,尤其产奶性状是重要的经济性状,近几十年来国内外对其遗传规律进行了大量的研究报导,但都因材料、地区,特别是估测方法的不同而各有所异。

译名：

THE ESTIMATION OF GENETIC PARAMETERS FOR MAJOR MILK PRODUCTION TRAITS OF BLACK AND WHITE COWS IN WUHAN

作者：

Zou Mulan;Zhong Tianji;Yu Chuanzhou, (Animal Husbandry Department of Huazhong Agricultural College) Xiong Jiaping;Jin Yong, (The Milk Company of Wuhan)

摘要：

The data on the first Lactation of Black and White cows collected from6 herds of the Milk company of Wuhan over a 8-year period(1976-1983),were analysed. The phenotypic and genetic parameters for major productivetraits(305-day adjusted yield, 30-day yield, 90-day yield, the highest monthlyyield and the highest daily yield)were estimated. The estimated heritabilities for the above traits are 0.19, 0.33, 0.33, 0.49 and0.31 respectively. The heritability of 305-day adjusted yield is slightly lowerthan those published by other authors. However, the trait of the highest monthly yield showed its high heritabi-lity (0.49) and repeatability (0.56). And it is closely related to the 305-dayyield. The genetic and phenotypic coefficients of correlation between them areequal to 0.84 and 0.68 respectively. These parameters may be used for reference in the practice of the cowbreeding in the districts of wuhan.

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武汉市黑白花奶牛主要数量性状遗传参数的估测

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