| 鲁中肉羊初生体尺体重的遗传参数估计 |
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| 引用本文： | 陶林,潘林香,王金文,狄冉,刘秋月,胡文萍,王翔宇,储明星.鲁中肉羊初生体尺体重的遗传参数估计[J].中国草食动物科学,2019(2):17-19,27. |
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| 作者姓名： | 陶林 潘林香 王金文 狄冉 刘秋月 胡文萍 王翔宇 储明星 |
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| 作者单位： | 中国农业科学院北京畜牧兽医研究所农业部动物遗传育种与繁殖重点实验室;莱芜市嬴泰有机农业科技发展有限公司;山东省农业科学院畜牧兽医研究所 |
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| 基金项目： | 国家自然科学基金项目(31772580);国家肉羊产业技术体系专项(CARS-38);中国农业科学院科技创新工程(ASTIP-IAS13);中央级公益性科研院所基本科研业务费专项(Y2017JC24);农业科研杰出人才及其创新团队项目(农办人[2015]62号);国家万人计划科技创新领军人才项目(W02020274) |
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| 摘 要： | 为估计鲁中肉羊初生重、体高、体长、胸宽、胸深、胸围和管围的遗传参数,利用2018年上半年出生的611只鲁中肉羊的初生体尺体重数据,采用AI-REML (Average information restricted maximum likelihood)算法,借助DMU软件分析以产羔数为固定效应、个体加性遗传效应为随机效应的多性状动物模型。结果表明:鲁中肉羊初生重、胸宽、胸深、体高、体长、胸围和管围的遗传力分别为0.16、0.10、0.22、0.44、0.43、0.46和0.52,各性状之间遗传相关为-0.517～0.773,表型相关为-0.197～0.503。说明鲁中肉羊初生重、胸宽和胸深为低遗传力性状,体高、体长、胸围和管围为中等遗传力性状。
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| 关 键 词： | 鲁中肉羊 初生体尺体重 遗传参数 AI-REML |
Estimation of Genetic Parameters for Body Measurements and Weight at Birth in Luzhong Mutton Sheep |
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| Tao Lin,Pan Linxiang,Wang Jinwen,Di Ran,Liu Qiuyue,Hu Wenping,Wang Xiangyu,Chu Mingxing.Estimation of Genetic Parameters for Body Measurements and Weight at Birth in Luzhong Mutton Sheep[J].China Herbivores,2019(2):17-19,27. |
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| Authors: | Tao Lin Pan Linxiang Wang Jinwen Di Ran Liu Qiuyue Hu Wenping Wang Xiangyu Chu Mingxing |
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| Institution: | (Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China;Laiwu Yingtai Organic Agriculture Science and Technology Development Co. Ltd , Laiwu, Shandong 271114, China;Institute of Animal Science and Veterinary Medicine,Shandong Academy of Agricultural Sciences,Jinan 250100,China) |
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| Abstract: | The present study aimed to estimate the genetic parameters for birth weight,withers height,body length,chest width,chest depth,chest girth and cannon bone circumference at birth in Luzhong mutton sheep.Using the data from 611 Luzhong mutton sheep born in the first half of 2018,with AI-REML(Average information restricted maximum likelihood)algorithm employed,DMU software was used to analyze the multi-trait animal model treating litter size as a fixed effect and individual additive genetic effect as a random effect.The results showed that the heritability of the birth weight,chest width,chest depth,withers height,body length,chest girth and cannon bone circumference at birth in Luzhong mutton sheep was 0.16,0.10,0.22,0.44,0.43,0.46 and 0.52,respectively.In addition to genetic correlations between these traits varied from-0.517 to 0.773 and phenotypic correlations ranged from-0.197 to 0.503.In conclusion,body weight,chest width and chest depth at birth of Luzhong mutton sheep were low heritability traits,withers height,body length,chest girth and cannon bone circumference were medium heritability traits. |
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| Keywords: | Luzhong mutton sheep body measurements and weight at birth genetic parameters AI-REML |
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