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| 萨寒杂交羔羊早期选择指标优化的研究 | |
| 引用本文： | 牛华锋,侯伟媛,韩卫杰. 萨寒杂交羔羊早期选择指标优化的研究[J]. 家畜生态学报, 2013, 34(5): 44-46 |
| 作者姓名： | 牛华锋 侯伟媛 韩卫杰 |
| 作者单位： | 1.杨凌职业技术学院，陕西 杨凌 712100；2. 西安市灞桥区动物卫生监督所，陕西 西安 710024； 3.江西省林业科学院，江西 南昌 330032 |
| 基金项目： | 杨凌职业技术学院社会服务项目（S2012010） |
| 摘 要： | 为了优化萨寒杂交羔羊早期选择指标,本研究利用相关分析、通径分析及决定系数分析方法对萨寒羔羊90日龄体尺体重指标对180日龄体重的影响进行了研究,结果表明,萨寒羔羊90日龄的体重体尺指标均对180日龄体重有显著影响;经进一步分析显示,在对萨寒羔羊进行早期选择时,应着重考虑体重、管围和体高等指标;建立了180日龄体重的多元回归方程:Y=-26.858+0.567 X1+0.540 X4+3.221 X2,可为羔羊生产经营提供参考。 |
| 关 键 词： | 杂交羔羊 早期选择 指标 优化 |
Optimizing Early Selection Indexs on Lamb of Suffolk×Small Tail Han Sheep |
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| NIU Hua-feng,HOU Wei-yuan,HAN Wei-jie. Optimizing Early Selection Indexs on Lamb of Suffolk×Small Tail Han Sheep[J]. Journal of Domestic Animal Ecology, 2013, 34(5): 44-46 | |
| Authors: | NIU Hua-feng HOU Wei-yuan HAN Wei-jie |
| Affiliation: | 1. Yangling Vocational & Technical College,Yangling Shaanxi 712100;2.Baqiao Animal Health Monitoring Institution ,Xi 'an Shannxi 710024;〖JP〗 3.Jiangxi Academy of Forestry,Nanchang Jiangxi 330032; |
| Abstract: | In order to optimize early selection indexs of the F1(S×H) lamb,The effects of 90 days' body weight and size index on 180 days body weight of F1(S×H) lamb was studied by methods of correlation analysis,path analysis and determination coefficient analysis. The results showed that the index of body weight and body form of F1(S×H) lamb on 90 days had a significant influence on body weight of 180 days. Further analysis showed body weight, cannon circumference and body hight of 90 days should be focused on in early selecting of F1(S×H) lamb. The multi regression equation was established: Y=-26.858+0.567X1+0.540X4+3.221X2. This can provide a reference for the production and operation of lamb. |
| Keywords: | crossed lamb early selection index optimizing |
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