Abstract:Male golden hamster sperm acquire complete fertilizing ability at about 48 days of age. In this study hamsters, 27-130 days of age were killed and their male reproductive tracts examined. Sperm were found in the caudae epididymides from 37 days onward. None of the sperm from animals younger than 41 days were capable of fertilizing ova when placed in the uteri of superovulated females. Using flow cytometry of acridine-orange-stained cells, the chromatin condensation in cauda epididymal sperm was investigated. I… Show more
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