Normal, healthy sperm live approximately 48-72 hours. We do know that washed sperm can survive in the IVF incubator for up to 72 hours. That would be considered the upper practical limit.

This depends on your individual situation, but it should be less than 72 hours since his last ejaculation in order to ensure the best motility and morphology. Where low sperm count is the reason for IUI, it is generally best to wait 48 hours between ejaculation and collecting sperm for the IUI. With no sperm count issues, it makes sense to wait about 24 hours. See similar questions...

Usually the sample is collected through ejaculation into a sterile collection cup, but it is also possible to obtain collection condoms for this purpose (through the doctor's office -- Milex is one company that makes them). Most clinics want the semen to be delivered within a half hour of ejaculation, around the time of liquefaction, so if one lives close enough the sample can be collected at home. If not, one has to make do with a room at the clinic, a bathroom, or any private setting. See similar questions...

Washed sperm is supposed to only live for 6-12 hours, but sometimes as long as 24 -- not nearly as long as sperm can live in fertile cervical mucus (sperm can live up to 5 days in fertile mucus, 2-3 days being pretty common). This is why timing is so important. See similar questions...

Sperm ejaculated into a woman's vagina remain alive in the mucus of the cervix and are able to fertilize an egg for three to five days. Sperm ejaculated outside the body usually live only a few hours. See similar questions...

Usually you can have intercourse anytime after an IUI . . . in fact, most doctors suggest having intercourse, when that is an option, soon after the last IUI to help make sure ovulation is covered. Your doctor may suggest waiting 48 hours to resume relations if you had any bleeding during the IUI or if a tenaculum is used. See similar questions...

The catheter loosens cervical mucus and lets it come out more easily. It is common to see more fertile mucus after an IUI for this reason. See similar questions...

IUI can help on Clomid cycles where cervical mucus is a problem, and IUI increases the chance of success on injectible cycles no matter what the sperm count. It does make sense to try IUI if you can and haven't had success with intercourse. See similar questions...

The frequency of intercourse generally should be that which the couple considers most enjoyable. However, during the time of the moth when ovulation takes place, the most advantageous frequency of intercourse is every other day (i.e., every 48 hours). The reason for this interval is that sperm should survive for 48 hours within the woman's reproductive tract and the egg should be subject to impregnate for 12 to 24 hours. See similar questions...

IUI helps deliver much more motile sperm to the fallopian tubes at the critical times around ovulation, and is recommended to improve pregnancy rates in many instances, including: unexplained infertility; sperm issues (such as count, motility or morphology); when fertility medications (including Clomid or injectable medications) are being used; or when a cervical mucous abnormality blocks the ability of the sperm to swim in to the uterus. See similar questions...

Besides the number of sperm, the percentage with rapid forward-progressive motility and with normal morphology at the time of insemination are important to know. If this functional sperm count exceeds 1 million, chances for pregnancy with well-timed IUI are excellent. A lead follicle should be at least 16-17 mm when the patient is on urinary gonadotropins for ovulation induction, it should beat least 18 mm on a recombinant FSH , and should be about 22 mm on Clomiphene citrate therapy. See similar questions...

A count above one million washed appears necessary for success, with a significant reduction in pregnancy rates when the inseminated is count is lower than 5-10 million (in other words, in most cases one should consider 5 million a lower limit for success, 10 million for cost-effective). Higher success rates are with washed counts over 20-30 million, while increasing counts over 50 million did not appear to offer advantage. See similar questions...

Well I guess that depends on who you talk to--Most farmers who are in the egg producing business will say 2 years. Those who are in the meat producing business will say 6 months--Those who keep birds as pets (with names) or who are not interested in maximum production of eggs, will find that chickens can live up to 8 or 10 years. See similar questions...