Hello! Tell or say, please, what is the time it is necessary for " it is updated...

[Oleg]

Hello! Tell or say, please, what is the time it is necessary for "updating" spermatozoons in an organism of the man. I considered or counted long time that for this purpose 72 hours about what repeatedly read in various sources are required. However, recently has learned or has found out if to believe the textbook of a histology, that all process of a spermatogenesis borrows or occupies nearby 2, 5 months. Explain, please, such inconsistent information

[The anonym]

On the average nearby 3 h months.

[Kuharkin S.A.]

72 days, instead of 72 hours. You have mixed.