Butter will keep for a long time refrigerated. Up to 6 weeks. You can also freeze this product and it will keep for over a year.   Hi - I only accessed this question as I hâ¦ave just tried some butter I had in the fridge. It is now Sunday 14th June 2009.
Sperm can be stored inside the male body for approximately 3 weeks after they've matured, after which they die inside the body if not ejaculated. So the entire sperm life cycle inside a man's body if not ejaculated (10 week maturation time + 3 week storage lifespan) is approximately 13 weeks or about 3 months.
Best Answer: Sperm are thought to retain fertilizing capability for up to 48 hours once they have entered the female genital tract, but it's possible their lifespan is even longer. Sperm production by the testicle takes about 90 days; the immature sperm are then deposited in a receptacle called the epididymis.est Answer: Sperm are thought to retain fertilizing capability for up to 48 hours once they have entered the female genital tract, but it's possible their lifespan is even longer. Sperm production by the testicle takes about 90 days; the immature sperm are then deposited in a receptacle called the epididymis.