Scientists have struggled to fully understand how male sperm cells function and why they sometimes fail to fertilize female eggs, which has implications for both livestock farmers aiming to maximize ...

Mammalian sperm cannot fertilize an egg from the get-go. It's an ability acquired only after insemination, during passage through the female reproductive tract, and requires two consecutive, ...

A "pill for men" may be a long way down the road, but a new fundamental knowledge of how sperm acquire the ability to fertilize an egg, letting scientists either block or enhance the process, is at ...

CAPACITATION, or the ability for immediate penetration of the ovum, occurs when epididymal sperm of the golden hamster (Mesocricetus auratus) are incubated in the presence of follicular fluid1–3.

Zinc ion plays a crucial regulatory role in the sperm capacitation process, or series of changes sperm undergo in the female reproductive tract that allow them to fertilize an egg. The researchers ...

COLUMBIA, Mo. -- Scientists have struggled to fully understand how male sperm cells function and why they sometimes fail to fertilize female eggs, which has implications for both livestock farmers ...