廖仁寶 黃鈺嘉 張秀鑾 賴永裕 顏念慈 吳明哲
ASSOCIATION STUDY BETWEEN MICROSATELLITE
ON PIG CHROMOSOME 1 AND THE LITTER PERFORMANCE OF PAROUS SOWS
R. B. Liaw, Y. C. Huang, H. L. Chang, Y. Y. Lai, N. T. Yen and M. C. Wu
Taiwan Livestock Research Institute, Council of Agriculture
A total of eight microsatellite markers on swine chromosome 1 (SSC1) were used to genotype 157 parous sows. These markers 1including SW1514, SW552, SW2185, SW1301, SW373, SW780, S0316 and SW2130 spanned about 140 cM on the linkage map of SSC1. Three traits including the number of total piglets, the number of piglets alive and the survival rate of piglets were analyzed. The genotyping analysis indicated that the allele frequency of every marker differed among four breeds. When we further analyzed the litter performance of sows with different alleles by the least-square method showed that the number of total piglets born from Duroc sows with B3 allele were significantly more than those without such an allele, and so did B1 allele of SW1301. For Landrace sows with B5 allele of SW373 and Duroc sows with B3 allele of SW1514, the number of alive piglets were significantly more than that without such an allele. In the same way, the trait of litter performance of different breed sows with some alleles would be inferior to those without such alleles.
Key Words: Microsatellite marker, Allele, Litter performance.