[The creation of genetic cryobanks and the use of the methods of developmental biology as a means for preserving rare animal species. I. The cryopreservation of the sperm of wild mammals].

A review of published data on cryoconservation of the sperm of wild animals. Progeny of females inseminated with frozen-thawed sperm was obtained in 21 species and subspecies, including 11 from the Red Data Book. Mobility of the spermatozoa after freezing-thawing was estimated in 74 species, including 13 from the Red Data Book. Studies on cryoconservation have recently been carried out predominantly on the Red Data Book species, as well as the species intensely bred in the countries, where several founder individuals were introduced (deer in Australia and New Zealand). Large zoos and some universities in the USA, Canada and Great Britain are the main research centers.