Abstract:It was to study the polymorphism of A-FABP gene and its correlation with carcass quality and meat quality traits in Zaosheng cattle groups. Using PCR-SSCP to analyze the polymorphism of A-FABP gene and its correlation with carcass quality and meat quality traits in five Zaosheng cattle groups(Qingyang group, QZ and its hybrid with South Devon group, QZ×N；Pingliang group, PZ and its hybrid with Qinchuan cattle group, PZ×Q；PZ and its hybrid with Simmental group, PZ×S). Result showed that there has a base mutation at c.408G>C of A-FABP gene exon 3 and exist three genotypes GG, GC and CC. Statistical analysis of carcass traits shows that carcass weight with GG genotype was significantly lower than CC genotype(P<0.05)；dressing percentage with GG genotype was significantly lower than GC genotype(P<0.01), and significantly lower than CC genotype(P<0.05)；net meat percentage with GG genotype was significantly lower than GC genotype(P<0.05)；loin muscle area with GG genotype was significantly lower than GC and CC genotypes(P<0.05). Statistical analysis of meat quality traits showed that pressing loss with GG genotype was significantly higher than CC genotype(P<0.05)；shear force with GG genotype was significantly higher than GC and CC genotype(P<0.01)；cooking loss and pH with GG genotype was significantly higher than GC genotype(P<0.05), and significantly higher than CC genotype(P<0.01). This mutation of A-FABP gene could be considered as a locus to carcass and meat quality.