Sentences with phrase «viable sperm»

Additionally, zinc plays a major role in producing healthy and viable sperm in males.

The number of viable sperm in nonoxyl - 9 began at 40 % and dropped off in regular steps to 6 % by the end of the three days.

Donor clinics are having trouble finding viable sperm:

To prove that these artificial PGCs were faithful copies, however, they had to be shown to develop into viable sperm and eggs.

Vasalgel works by injecting a polymer into the vas deferens — the duct which conveys sperm from the testicle to the urethra — forming a semi-solid plug which blocks viable sperm passing through.

«We had to find out if the last known male in China no longer produces viable sperm due to old age or an inability to inseminate the female,» said Dr. Gerald Kuchling, organizer of the artificial insemination effort and Rafetus breeding program leader for the TSA.

ICSI involves selecting a single viable sperm cell that is then injected into the egg through a needle.

«But most men with fertility problems don't make viable sperm at all or make too little for even assisted fertilization to work,» he added.

For men who have very few viable sperm, doctors can select the best quality sperm and ensure it fertilizes the egg, Van Steirteghem explained.

If timing and conditions are right, and there is viable sperm there to meet the egg, you get that BFP sign (aka you're pregnant!).

Did you know that while men produce new, viable sperm throughout their lives (and never seem to age or wrinkle in general), women are born with every single egg they will ever have the rest of their lives?

With the help of fluorescent stains that glow when bound to burst cells, they were able to estimate the number of viable sperm that remained after each time interval.

«Right before ejaculation, your partner might have released some fluid called «pre-ejaculation,» which may have active and viable sperm that can make you pregnant.»

So, if you have sex before your LH surge and there is a viable sperm, it can fertilize and you may become pregnant.

Mules, hinnies, and other normally sterile interspecific hybrids can not produce viable gametes because the extra chromosome can not make a homologous pair at meiosis, meiosis is disrupted, and viable sperm and eggs are not formed.

For men who have very few, viable sperm, this means that the fertility experts can choose the best quality sperm and ensure it fertilises the egg by injecting the sperm rather than leaving it to swim to the egg unaided.

Better than four out of five survive five years or more, but prepubescent boys risk getting azoospermia, a lack of viable sperm.

«The leap of faith is finding the viable sperm or oocytes [cells that become eggs],» says John Critser, scientific director of the Cryobiology Research Institute in Indianapolis.

To determine the cause of the infertility, Suzhou Zoo, Changsha Zoo, and the China Zoo Association requested TSA assemble a team of scientists to conduct a reproductive evaluation of the male, collect semen, determine if he had viable sperm, and, if viable sperm could be demonstrated, artificially inseminate the female.

Could viable sperm be recovered from the Ice Man, the 5,000 - year - old mummy that had just been discovered in the Alps?

Having healthy, viable sperm is important if you are trying to have a baby.

Caffeine intake during pregnancy can also decrease the number of viable sperm a male child has later in life, the study notes.

In the post-pubertal years, exposure to high levels of genistein, as is seen in strict vegetarians who replace animal proteins with soy - based foods, has general feminizing effects on their male anatomy, including reduced sperm production, a decrease in viable sperm, breast development and a reduction in sex drive due to an overall decrease in androgens.22

If there is no viable sperm to fertilize your egg, your hormone levels, namely estrogen and progesterone, plummet and your period begins once again.