The production of mature spermatozoa from spermatogonia
It takes approximately 65 to 70 days to develop spermatozoa from the earliest stages of spermatogonia. Because the production of sperm depends on LH and FSH, a lack of GnRH (Kallmann's syndrome) will reduce the production of LH, FSH, and sperm. Temperature is impoant in regulating sperm production. Optimal sperm production occurs at 2 to 30C lower than body temperature.
Takes 32 days
Takes 70 days
Takes 150 days
Is unaffected by Kallmann's syndrome
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