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The aim of the present study was to investigate which parameters among a battery of analyses could predict subsequent spermatozoa in vitro fertilization ability and hence blastocyst output in a goat model. Ejaculates were obtained by artificial vagina from 3 adult goats Capra hircus aged 2 years A, B and C. In order to assess the predictive value of viability, computer assisted sperm analyzer CASA motility parameters and ATP intracellular concentration before and after thawing and of DNA integrity after thawing on subsequent embryo output after an in vitro fertility test, a logistic regression analysis was used. Individual differences in semen parameters were evident for semen viability after thawing and DNA integrity. The model proposed here represents one of the many possible ways to explain differences found in embryo output following IVF with different semen donors and may represent a useful tool to select the most suitable donors for semen cryopreservation. During the last decade several molecular and cellular markers have been proposed as tools to evaluate sperm fertility in vitro in raw or processed semen samples, but with highly variable results [reviewed in Refs.
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Computer-assisted semen analysis (CASA) provides objective and reproducible data on a number of sperm motion parameters and it should. Because an egg is normally fertilized in the fallopian tube, the head start that IUI gives the sperm increases the odds that many sperm will make it all the way to.
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But as she left the office, the doctor suddenly ran out to the lobby and called her back. There was a grave mistake. Instead of being inseminated with the sperm of her fiance, she received a vial of semen from another man.

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Comments
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