Donor insemination (DI) using cryopreserved semen was legal aspects of semen donation. Final acceptance as a donor depended facilitated by the discovery in 1949 of the cryoprotective on the outcome of a freezeâthaw test on the donorâs semen â donors properties of glycerol. Subsequent work were accepted if the post-thaw analysis showed 203106 motile showed that enhanced motility recovery could be obtained in spermatozoa/ml. Final acceptance also depended on the results of a the presence of additional components such as egg yolk and number of pathology tests. Every semen sample from a donor was glycine. Artificial insemination (AI) is the deliberate introduction of semen into a female's vagina or oviduct for the purpose of achieving a pregnancy through fertilization by means other than sexual intercourse. It is the medical alternative to sexual intercourse, or natural insemination, and is a fertility treatment for humans, a common practice in the breeding of dairy cattle (see Frozen bovine semen) and pigs, and is also used in other animal breeding. (Artificial insemination and in-vitro fertilization using donor spermatozoa: a report on 15 years of experience, G.N.Clarke, H.Bourne, P.Hill, W.I.H.Johnston)
Last date updated on July, 2014
