| 摘要: |
| 在估计综合育种中，如果能在多个生产性状中剔除几个性状，进行部分计算，会使综合育种值的计算变得简单。本文研究了北京迪卡猪各种简化综合育种值中目标性状的经济权重及其与完全综合育种值的相关。结果表明，简化综合育种值中只包含一个目标性状时，最好的性状为饲料转化效率，与完全综合育种值的相关（r）等于0．8690；包含2个目标性状时，最佳的的性状组合是饲料转化效率与瘦肉率（r＝0．9606）；包含3个目标性状时，最好的目标性状组合是南活仔数、日增重及瘦肉率，它已经达到很高的精确度，与完全综合育种值的相关为1．0000。 |
| 关键词: 猪 育种目标 简化综合育种猪 杂交组合 |
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| Study on The Breeding Goal of Beijing Dekalb Pig-Reduced Total Breeding Value |
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| Abstract: |
| The present paper analyses the relationships of econoinic coefficients of goat traits between various reduced total breeding values (RTBV) and total breeding value(TBV) for hiijing Dekalb Pig. When RTBV includes one trait, the most efficient trait is feed conversion efficiency(FCE) (r= 0. 869 0) ; when RTBV incoudes 2 and 3 trairs, the most efficient combinatlons of goal traits are (FCE+estimated lean meat percentage (ELMP) and (Litter size born alive (LSBL) +Growth rate (GR) +ELMP), respectively.The correlation coafficients between these RTBVs and the TBV are 0. 960 6 and 1. 000 0,respectively. |
| Key words: pig,breeding goal,beduced total breeding value |
