Received: 14-07-2012 / Accepted: 20-08-2012
The study was conducted in 33 castrated male pigs of Yorkshirex Landrace crossbredto analyze the association of polymorphisms of myogenin (MyoG) and Leukemia-Inhibitory-Factor (LIF)genes with some economic traits for growth and carcass performance. The genotypes of MyoG were significantly associated with carcass percent, in which pigs with heterozygous genotype AB (76.32±1.30) was superior to the homozygous genotypesBB (72.77±1.30) and AA (69.46±2.91) (P=0.05). In addition, in LIF locus, the association between genotypes and carcass length also showed significant difference (P<0.05), with the highest carcass length occurring in pigs withhomologous genotype BB (78.00±2.84). Therefore, it is suggested that allele “B” in both candidate genes could be used as a SNP-marker to improve carcass performance in pigs.