| 松辽黑猪繁殖性的相关及通径分析 |
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| 引用本文： | 刘庆雨,张树敏,于永生,金鑫,李娜,李兆华,赵晓东.松辽黑猪繁殖性的相关及通径分析[J].吉林畜牧兽医,2012,33(4):28-30. |
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| 作者姓名： | 刘庆雨 张树敏 于永生 金鑫 李娜 李兆华 赵晓东 |
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| 作者单位： | 1. 吉林农业大学,吉林长春,130062
2. 吉林省农业科学院,吉林公主岭,136100 |
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| 基金项目： | 国家科技支撑子课题，吉林省科技厅重大攻关，吉林省科技厅成果转化资金，吉林省科技厅现代农业重点项目 |
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| 摘 要： | 对松辽黑猪总产仔数（X1）、产活仔数（X2）、出生均重（X3）、出生窝重（X4）、20日龄窝重（X5）、断奶仔猪数（X6）、35日龄断奶窝重（y）7个繁殖性状进行了通径分析和回归分析。结果表明各个繁殖性状在表型值上都存在不同程度的相关，其中对断奶窝重影响最大的为断奶仔猪数，其次为20日龄窝重、产活仔数及总产仔数。建立最优回归方程为y=20．031—1．958x1O．405x5＋8．201x6
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| 关 键 词： | 松辽黑猪 繁殖性状 通径分析 |
Correlation and Path Analysis for Reproductive Traits of Songliao Black Swine |
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| LIU Qing-yu,ZHANG Shu-min,YU Yong-sheng,JIN Xin,LI Na,LI Zhao-hua,ZHAO Xiao-dong.Correlation and Path Analysis for Reproductive Traits of Songliao Black Swine[J].Jilin Animal Science and Veterinary Medicine,2012,33(4):28-30. |
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| Authors: | LIU Qing-yu ZHANG Shu-min YU Yong-sheng JIN Xin LI Na LI Zhao-hua ZHAO Xiao-dong |
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| Institution: | 1.Agricultural University of Jilin,Changchun,130118,China;2.Agricultural Sciences Academy of Jilin,Gongzhuling,136100,China |
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| Abstract: | Seven reproductive traits including total number of farrowed piglets(x1),number of living newborn piglets(x2),average weight of newborn piglets(x3),litter weight of newborn piglets(x4),litter weight of 20-day old piglets(x5),numberof weaned piglets(x6)and litter weight of 35-day old weaned piglets(y)of Songliao black pig were analyzed with Path analysis and regression analysis.The results shows that a major portion of reproductive traits were correlated with another,andthe most factor influenced on the litter weight of 35-day old weaned piglets was the number of weaned piglets,and secondlywere the litter weight of 20-day old piglets,number of weaned piglets and number of living newborn piglets.The optimumregression equation of reproductive traits,y=20.031–1.958x1+0.405x5+8.201x6,was established in Songliao black swine. |
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| Keywords: | songliao black pig reproductive trait path analysis |
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