Objective: To study the expression specificity in tissues of the Catsper and its expression rules,which is a specific cation channels in sperm and plays an important role in sperm hyperactivation.

All of the above was to provide evidence for further research of the mechanism of the regulation of sperm hyperactivation.

The aim of this study was to evaluate the change of tyrosine phosphorylation during in vitro capacitation, and the effects of Ca~(2+), HCO_3~- and BSA on protein tyrosine phosphorylation, hyperactivation and capacitation in guinea pig sperm.

Li as the test materials,to get MOSE by ethanol and water extract,to study its effect on the sperm activity in vitro of Kunming species male mice.

Ultrastructure of spermatozoa and effects of salinity, temperature and pH on spermatozoa motility in Epiniphelus coioides;

rats,and explore its machnism of anti-UU and enhancing spermatozoa motility.

The effects of different cryoprotectants on the sperm motility and the movement time of Japanese eel (Anguilla japonica);

Observe the sperm motility of pointed snout Brachymystax Lenok and obtuse snout Brachymystax Lenok;

The sperm motility and initial stages of penetration of sperm into eggs in Monopterus albus;