A total of 45 racing pigeons were genotyped using PCR-RFLP method. PCR product of the LDH-A gene was amplified according to the Long-PCR procedure. The amplification products were digested with restriction enzymes. PCR-RFLPs for two restriction enzymes, HaeIII and NlaIV, were observed. Two pairs of alleles LDH-AA and LDH-AB for LDH-A-NlaIV polymorphism and LDH-AC and LDH-AD for LDH-A-HaeIII polymorphism were detected in the homozygous and heterozygous states. Frequencies of alleles were as follows: A ? 0.622, B ? 0.378 and C ? 0.256, D ? 0.744.