Sperm cells mature in the epididymis ... From start to finish, the production of a single sperm can take up to 72 days. Female: During childhood, a girl's ovaries absorb almost half of the ...

The use of ICSI does not require abundant live sperm cells, as only a single sperm cell is injected directly into the egg. This makes it particularly valuable for species where obtaining viable ...

TAF4b, a gonad-specific protein critical for mouse fertility, is not only required for long-term sperm production, but also plays a role in maintaining a population of spermatogonial stem cells, ...