摘要
应用多性状ＢＬＵＰ法对长白猪选育中的主选性状日增重和背膘厚进行了遗传趋势的分析．研究结果表明，３个世代的群体平均育种值，日增重分别为３０．１８，４１．８８和９５．２４ｇ，表现出逐代上升的趋势；背膘厚分别为０．１４，０．０２和－０．２８ｍｍ，呈逐代下降趋势，说明所采取的育种措施是有效的．
The genetic trend of the daily gain and backfat thickness of Landrace swine has been analysed by using the method of multitrait BLUP. The results show that the average breeding values of daily gain are 30.18, 41.88 and 95.24 g for the first three generations respectively.The average breeding values of backfat thickness are 0.14,0.02 and -0.28 mm respectively.The genetic trend of daily gain increases while backfat thickness decreases which indicates that the breeding measures are valid.
出处
《湖南农业大学学报（自然科学版）》
CAS
CSCD
1998年第3期241-244,共4页
Journal of Hunan Agricultural University(Natural Sciences)
基金
湖南省科委资助
关键词
长白猪
BLUP法
日增重
背膘厚
遗传趋势分析
Landrace swine
BLUP
daily gain
thickness backfat
genetic trend analysis
