Effect of NaHCO3 on plasma membrane integrity in boar sperm (A). a-fValues with differents uperscripts in the same column with sperm are significantly different (p < 0.05). Influence of NaHCO3 on acrosome reaction in boar sperm (B). a-cValues with differents uperscripts in the same column with sperm are significantly different (p < 0.05). Boar sperm was treated with NaHCO3 at 38℃, 5% CO2 for 6 h.