title: Does sperm motility reflect the potential penetrating capacity?
abstract: 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.
mesh_terms: D000818:Animals; D006224:Cricetinae; D005260:Female; D006801:Humans; D008297:Male; D013081:Sperm Motility; D013084:Sperm-Ovum Interactions