Abstract
Summary
Motility and the expression of fertilizing ability by cauda epididymal rat spermatozoa, incubated in a chemically defined medium, were demonstrated to differ in their dependence on Ca2+ ions. Motility was optimal at 1.7 mM Ca2+, whereas fertilization rates were significantly higher at 2.6 and 3.4 mM Ca2+. These results are interpreted as indicating that sperm motility may not have to be maximized for fertilization to occur.
Get full access to this article
View all access options for this article.