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| 不同牛场奶牛泌乳曲线拟合及参数分析 | |
| 引用本文： | 张佳兰,茹彩霞,赵文辉.不同牛场奶牛泌乳曲线拟合及参数分析[J].湖北农业科学,2012,51(12):2539-2541. |
| 作者姓名： | 张佳兰 茹彩霞 赵文辉 |
| 作者单位： | 1. 长江大学动物科学学院,湖北荆州,434025 2. 西安现代农业综合开发总公司,西安,710038 3. 西安德瑞良种奶牛推广中心,西安,710038 |
| 摘 要： | 以3个牛场2009～2010年参与DHI测定的成年母牛的泌乳期数据为资料,用Wood模型通过SPSS的非线性参数和决定系数来拟合泌乳曲线并分析泌乳曲线参数在不同牛场和胎次的差异.结果表明,不同牛场估测的泌乳曲线模型参数存在显著的差异(P＜0.05),导致部分泌乳特性参数也有一定的差异.这些差异可能是牛群选育或饲养管理或二者共同的结果.因此,分析泌乳曲线应与牛场自身的饲养管理和选育程度相结合. |
| 关 键 词： | 泌乳曲线 胎次 泌乳特性参数 |
The Lactation Curves Fitting and Parameters Analysis in Different Dairy Cattle Farms |
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| ZHANG Jia-lan , RU Cai-xia , ZHAO Wen-hui.The Lactation Curves Fitting and Parameters Analysis in Different Dairy Cattle Farms[J].Hubei Agricultural Sciences,2012,51(12):2539-2541. | |
| Authors: | ZHANG Jia-lan RU Cai-xia ZHAO Wen-hui |
| Institution: | 1.College of Animal Science,Yangtze University,Jingzhou 434025,Hubei,China;2.Xi’an Modern Agriculture Development Company, Xi’an 710038,China;3.Xi’an Superior Dairy Cattle Promotion Center,Xi’an 710038,China) |
| Abstract: | According to the lactations data of dairy cattle in DHI test from three dairy farms during 2009 to 2010,the lactation curves were fitted into Wood equations by SPSS nonlinear parameter estimation and determination coefficient.The differences of model parameters and the lactation feature indices of dairy cattle in different farms and parities were also analyzed.The results showed that there were significant differences in the model parameters of lactation curves from different farms(P<0.05).It also showed some differences in partial lactation feature indices among the three dairy farms.It might be the results of feeding management and the breeding and selection of dairy herd.Therefore,analysis of lactation curves should combine their own feeding management and the herd breeding. |
| Keywords: | lactation curves parity lactation feature indices |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |