Year: 1976
Type: article
Abstract: The fertilizable life of mammalian eggs retained in the oviduct is limited; in the mouse, estimates vary from 10–15 hr (for review, see Iwamatsu & Chang, 1971), but the effect of egg age on the kinetics of sperm penetration has not been examined thoroughly. In considering age-dependent losses in egg fertilizability, both in vivo and in vitro, we were interested in differentiating between changes occurring at the zonal level versus those affecting the sperm–egg fusion process, i.e. vitellus-related. Accordingly, sperm penetration of zona-intact and zona-free eggs was investigated.
Source: Reproduction
Authors: D. P. Wolf, Mitsuma Hamada
Institution: University of Pennsylvania
Language: English
Field: Medicine
Domain: Health Sciences
Open Access status: bronze
OpenAlex ID: W2097065892