| 选择产蛋量七个世代蛋壳及蛋品质的相关反应 |
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| 引用本文： | 孙宪如,卢一凡,赵立富.选择产蛋量七个世代蛋壳及蛋品质的相关反应[J].中国兽医学报,1990(2). |
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| 作者姓名： | 孙宪如 卢一凡 赵立富 |
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| 作者单位： | 吉林农业大学动物科学系
(孙宪如，卢一凡)，吉林省国际信托贸易公司(赵立富) |
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| 摘 要： | 以北京白鸡Ⅲ系七世代选择群和基础群为材料,估计选择产蛋量七个世代对蛋壳及蛋品质产生的相关反应.结果表明,经七个世代选择,产蛋量、蛋重、蛋白高度和哈夫单位都有所提高,而蛋壳厚度和蛋比重有一定程度下降.估计蛋壳厚度、蛋白高度和哈夫单位的遗传力分别是0.159 5、0.017 8和0.099 4.产蛋量与蛋白高度、哈夫单位和蛋壳厚度呈负遗传相关.选择产蛋量使蛋壳品质发生负向相关反应.
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| 关 键 词： | 选择产蛋量 蛋壳厚度 蛋白高度 哈夫单位 遗传参数 |
Correlation Response of Shell and Albumen Qualitiesto Selection of Increasing Egg Production forSeven Generations |
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| Sun Xianru et al.Correlation Response of Shell and Albumen Qualitiesto Selection of Increasing Egg Production forSeven Generations[J].Chinese Journal of Veterinary Science,1990(2). |
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| Authors: | Sun Xianru |
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| Abstract: | Correlation response of shell and albumen qualities to selection for increasing egg production during seven generations was estimated in Beijing White Leghorn Strain III, The results showed that egg production, egg weight, albumen height and Haugh units were all enhanced, but to a certain extent the specific gravity and shell thickness were decreased. The heritabililies of egg shell thickness, albumen height and Haugh units were 0.1595, 0.0718 and 0.0994, respectively. Egg production was negatively correlated with specific gravity and shell thickness. It suggested that selection for egg production tended to the negative correlation response occurring in shell strength. |
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| Keywords: | selection of egg production shell thickness albumen height Haugh units genetic parameters |
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