Actually its takes a matter of seconds to produce a sperm. Millions of sperm are produced in a day.
One hour.
Sperm production is the creation of sperm in the testies of the bull. Ovum production is the creation of eggs in the ovaries of the cow.
If he stays in long enough and often enough to significantly raise the temperature in his scrotum, then the sperm currently under production will be somewhat degraded. However, sperm is under constant renewal and it doesn't take ling for the sperm quality to bounce back.
It can take a matter of hours depending on how much sperm there is
Sperm production in the human & mammals is in the testes, also known as the Testicles.
Smoking cigarettes is one thing that can damage sperm production. Stress is another.
Diabetes do not stop the sperm production normally. Uncontrolled diabetes may affect the erection in long term.
1 hour
a sec
A day
1.5 weeks.
Sperm production takes about 90 days.
It can take 12 - 72 hours for human sperm to reach the egg.