Does sperm motility reflect the potential penetrating capacity?
This study was conducted to determine whether spermatozoal motility in the fresh ejaculate and that after various treatments correlates with the results of in vitro penetration (IVP) of zona-free hamster oocytes. In 24 different ejaculates, a poor correlation was noted between the IVP results and initial sperm motility. However, a significant (P less than .05) correlation was observed between motility of washed (0.47), incubated (0.43) and oocyte-exposed (0.41) sperm v. IVP results. Furthermore, variable proportions of motile sperm in individual ejaculates (n = 4), obtained by addition of known amounts of killed immotile sperm to fresh ejaculate, had a significantly (P less than .05) higher correlation (0.83) with IVP results.
D000818:Animals; D006224:Cricetinae; D005260:Female; D006801:Humans; D008297:Male; D013081:Sperm Motility; D013084:Sperm-Ovum Interactions