Study on Germplasm Characters of Meihuaxin Pig Population at Molecular Level

The polymorphism of ESR,FSHβ(affecting litter size at birth), TEF1(growth rate), LPIN1,H-FABP(intramuscular fat), MC4R,CMYA1(backfat thickness) genes of Meihuaxing pig population in Huangmei county was detected by PCR-RFLP.The results showed that there was high polymorphism in the 7 genes of the population. The favorable allele frequency correlated to intramuscular fat content was rather high, which might be the molecular base for the high quality of meat. But the heterozygote frequency of the genes correlate to other traits was very high. Compared with other researches, it was inferred that Meihuaxin pigs were highly hybridized with introduced pigs. The research might provide useful scientific data for the conservation and utilization of Meihuaxin pig resource.