Impact of theNCOA1,OPNandRBP4genes on individual weight at birth and individual weight at 30 days in hybrid pig

The effects of the polymorphism of the nuclear receptor coactivator 1 gene (NCOA1), osteopontin (OPN), and retinol-binding protein 4 (RBP4) genes on individual weight at birth (WTB) and individual weight at 30 days (WT30) were analyzed by Polymerase chain reaction–restriction fragment length polymorphism (PCR–RFLP) in hybrid pig (Landrace ♀ ×Wild boar ♂). The relationship between different genotypes and WTB and WT30 were analyzed. Results showed that: AA genotype of NCOA1 had higher WT30 than BB individuals (P 0.05). BB and AB genotypes of RBP4 had a higher WTB and WT30 than AA (P>0.05). The results presented here demonstrate that the NCOA1 gene may be considered as a marker for WT30 trait in pig.