| 性别对长白猪的主要经济性状的遗传参数估计的影响 |
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| 引用本文： | 金海国,曹阳,朴英一.性别对长白猪的主要经济性状的遗传参数估计的影响[J].山东农业大学学报(自然科学版),2002,33(4):434-437,447. |
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| 作者姓名： | 金海国 曹阳 朴英一 |
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| 作者单位： | 1. 延边大学农学院,吉林,龙井,133400
2. 韩国汉城国立大学,韩国,水源,441-744 |
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| 摘 要： | 本文通过建立动物模型 ,采用MTDFREML程序 ,对位于韩国京畿道二川郡的某原种猪场的 4 ,2 12头鉴定的长白猪的资料进行了性别对长白猪主要经济性状的遗传参数的影响的研究。结果表明 :长白猪的主要经济性状的最小二乘均值在公母猪之间有明显的差异 (p <0 .0 5 ) ;模型中同时考虑母体效应时得到的遗传力均低于没有考虑母体效应时的遗传力。同时 ,将性别示为固定效应时的各性状间的遗传相关高于只考虑公猪时的各性状间的遗传相关 ,但低于只考虑母猪时的各性状间的遗传相关。
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| 关 键 词： | 性别 长白猪 经济性状 遗传参数估计 |
| 文章编号： | 1000-2324(2002)04-0434-04 |
EFFECT OF SEX ON THE ESTIMATION OF GENETIC PARAMETERS FOR ECONOMIC TRAITS IN LANDRACE |
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| JIN Hai-guo ,CAO Yang ,PIAO Ying-yi.EFFECT OF SEX ON THE ESTIMATION OF GENETIC PARAMETERS FOR ECONOMIC TRAITS IN LANDRACE[J].Journal of Shandong Agricultural University,2002,33(4):434-437,447. |
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| Authors: | JIN Hai-guo CAO Yang PIAO Ying-yi |
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| Institution: | JIN Hai-guo 1,CAO Yang 1,PIAO Ying-yi 2 |
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| Abstract: | This study was dealt with the influences of sex on the estimation of genetic parameters for the major economic traits of average daily, age at 30kg, age at 90kg, backfat thickness and body height in Landrace on the basis of the data from 4,212 heads in the Landrace breed tested at S Swine Breeding Farm in Icheon, Kyunggy Do, Korea, according to the animal model MTDFREML. The least squares means of the major economic traits for Landrace were statistically significant(p<0.05) in sex. From the model, additive genetic heritabilities estimated including the maternal effect were all lower than it excluding the maternal effect. If sex was considered as fixed effect the genetic correlations of all traits studied were higher than in males while were lower than in females. |
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| Keywords: | Landrace sex economic traits animal model genetic parameters |
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