| 大白猪胎盘效率遗传规律的初步研究 |
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| 引用本文： | 李光全,王立贤,刘剑锋. 大白猪胎盘效率遗传规律的初步研究[J]. 畜牧与兽医, 2002, 34(12): 5-6 |
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| 作者姓名： | 李光全 王立贤 刘剑锋 |
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| 作者单位： | 1. 贵州省遵义农业学校,贵州,遵义,563123
2. 中国农业科学院畜牧所,北京,100094 |
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| 基金项目： | 北京市自然科学基金资助 (60 1 2 0 1 6) |
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| 摘 要： | 本文分析了 77头纯种大白母猪的 469头初生仔猪的胎盘效率、胎盘面积、胎盘长度、胎盘重及初生重等性状资料 ,估计了各性状间的简单相关系数 ,应用非求导约束最大似然法 (MTDFREML)估计大白猪胎盘效率、胎盘面积、胎盘长度、胎盘重及初生重的遗传力 ,估计结果分别为0 46 ,0 2 5 ,0 1 1 ,0 1 4和 0 2 9
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| 关 键 词： | 大白猪 胎盘效率 遗传力 |
| 文章编号： | 0529-5130(2002)12-0005-02 |
| 修稿时间： | 2002-03-28 |
Study on genetic pattern of placental efficiency in Large White pig |
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| LI Guang quan ,WANG Li xian ,LIU Jian feng. Study on genetic pattern of placental efficiency in Large White pig[J]. Animal Husbandry & Veterinary Medicine, 2002, 34(12): 5-6 |
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| Authors: | LI Guang quan WANG Li xian LIU Jian feng |
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| Affiliation: | LI Guang quan 1,WANG Li xian 2,LIU Jian feng 2 |
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| Abstract: | placental records of piglets in Large White pigs were analyzed to investigate the genetic pattern of placental efficiency and the relationship between placental traits. Placental efficiency was determined in the ratio of piglets weight to that of its placenta. The statistical analyses indicated that placental efficiency was 6 35±1 48. The heritability estimates for birth weight, placental weight, placental efficiency,placental length and placental surface were 0 29, 0 14, 0 46, 0 11 and 0 25, respectively. |
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| Keywords: | Large White pigs placental efficiency heritability |
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