lai, b.; lin, q.

The sperm and testis of Duroc boars were used as research objects. The purpose of this study was to observe the localization of NAGase in Duroc boars\' testis and the mechanism of its effect on sperm motility. The expression and localization of NAGase in testis tissues were detected by immunohistochemistry. Sperm morphology and histology were observed by H.E. staining. The localization of NAGase in sperm cells was observed by immunofluorescence technique. Acrosome integrity and motion performance (forward motion, head-side swing,