Aim: To study the action of zinc that reduces sperm damage in assisted reproductive technology. Methods: The preferred sperms selected by density gradient centrifugation were divided into blank control group,hydrogen peroxide-treated group,and experimental group which was treated with both hydrogen peroxide and Zinc; The three groups were compared in sperm motility,viability,sperm plasma membrane integrity,and sperm DNA fragmentation after 5h incubation. Results: The sperm motility and vitality decreased,th...