| 大尾寒羊产羔数对胎次的回归分析 |
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| 引用本文： | 白俊艳,张省林,庞有志,赵淑娟.大尾寒羊产羔数对胎次的回归分析[J].畜牧与饲料科学,2011(2). |
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| 作者姓名： | 白俊艳 张省林 庞有志 赵淑娟 |
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| 作者单位： | 河南科技大学动物科技学院,河南洛阳,471003 |
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| 基金项目： | 河南省科技攻关项目(0624230021); 河南科技大学校青年科学研究基金项目(2006QN071),河南科技大学博士科研启动基金资助(09001094) |
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| 摘 要： | 该研究利用SPSS软件分析了大尾寒羊产羔数对胎次的回归,大尾寒羊产羔数对胎次的二次方回归和三次方回归的拟合度(R2)分别为0.9246和0.9269,可见两种模型下的回归方程的拟合度都比较高。产羔数对胎次的二次方回归方程中的所有回归参数均达到极显著水平(P<0.01),说明大尾寒羊产羔数对胎次用二次方回归方程具有一定的应用价值。
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| 关 键 词： | 产羔数 胎次 回归分析 大尾寒羊 |
Regression Analysis between Litter Size and Parity in Fat-tailed Sheep |
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| BAI Jun-yan,ZHANG Sheng-lin,PANG You-zhi,ZHAO Shu-juan.Regression Analysis between Litter Size and Parity in Fat-tailed Sheep[J].Animal Husbandry and Feed Science,2011(2). |
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| Authors: | BAI Jun-yan ZHANG Sheng-lin PANG You-zhi ZHAO Shu-juan |
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| Institution: | BAI Jun-yan,ZHANG Sheng-lin,PANG You-zhi,ZHAO Shu-juan (College of Animal Science and Technology,Henan University of Science and Technology,Luoyang 471003,China) |
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| Abstract: | Regression between litter size and parity in fat-tailed sheep was analyzed using SPSS software. The quadratic regression and cubic regression goodness of fit (R2) of litter size and parity was high in fat-tailed sheep, 0.924 6 and 0.926 9, respectively. All regression parameters of quadratic regression equation between litter size and parity reached highly significant level (P <0.01), which showed the quadratic regression equation between litter size and parity has a certain application value. |
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| Keywords: | litter size parity regression analysis fat-tailed sheep |
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