| 奶牛产奶量与乳成分的多元回归分析 |
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| 引用本文： | 张巧娥,吴学荣,马水鱼,邢燕.奶牛产奶量与乳成分的多元回归分析[J].江西农业大学学报,2011,33(1). |
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| 作者姓名： | 张巧娥 吴学荣 马水鱼 邢燕 |
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| 作者单位： | 宁夏大学农学院,宁夏银川,750021 |
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| 基金项目： | 公益性行业(农业)科研专项(nyhyzx07-036); 宁夏教育厅项目(20090034); 宁夏自然科学基金资助项目(nz1008); 宁夏大学农学院创新试验(20090016) |
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| 摘 要： | 通过SAS 8.2软件分析了20头胎次相同、泌乳期相近荷斯坦泌乳牛产奶量与乳成分中乳蛋白质率、乳脂率、干物质、体细胞数和乳中尿素氮的多元回归分析。结果表明:从产奶量与乳成分的单项指标回归分析表明,产奶量与乳脂率、体细胞数和干物质含量呈显著性的负相关,而与乳蛋白率和乳中尿素氮差异不显著;从产奶量与乳成分的多元回归分析表明,乳蛋白率、乳脂率和干物质含量对产奶量的影响高于体细胞数和乳中尿素氮,同时乳蛋白率、乳脂率、体细胞数和乳中尿素氮与产奶量成反比。
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| 关 键 词： | 产奶量 乳成分 多元回归分析 奶牛 |
Multiple Regression Analysis on Milk Yield and Milk Composition of Dairy Cow |
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| ZHANG Qiao-e,WU Xue-rong,MA Shui-yu,XING Yan.Multiple Regression Analysis on Milk Yield and Milk Composition of Dairy Cow[J].Acta Agriculturae Universitis Jiangxiensis,2011,33(1). |
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| Authors: | ZHANG Qiao-e WU Xue-rong MA Shui-yu XING Yan |
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| Institution: | ZHANG Qiao-e,WU Xue-rong,MA Shui-yu,XING Yan(College of Agriculture,Ningxia University,Yinchuan 750021,China) |
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| Abstract: | 20 heads Holstein cattles of same matched plet and similar lactation period were selected.Multiple regression analysis between milk yield and protein ratio in milk,fat ration in milk,dry matter content,somatic cell count and urea nitrogen in milk were analyzed in this study by SAS 8.2.The result showed that the corelation between milk yield and fat ration in milk,somatic cell count,and dry matter content was significantly negative,while milk yield had no significant corelation with protein ratio in milk and... |
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| Keywords: | milk yield milk composition multiple regression analysis dairy cow |
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