title: [Diploid radiation gynogenesis in carp. I. Massive production of diploid gynogenetic progeny].
abstract: Mass lost of diploid gynogenetic carp offspring were obtained with the use of fish-farm method of reproduction. The average yield of gynogenetic diploids in usual experiments was 0.1% (from fertilized eggs). The cooling of unfertilized spawn (at the stage of metaphase II) to 8--10 degrees C during 3.5--4.5 hours in 50% of cases permitted to increase by tens of times (in the most successful experiments up to 8%) the yield of gynogenetic diploids. The rate of survival of carps remained relatively low during the first two years of life, particularly during the first hibernation that is a critical period. No specific depression of growth in gynogenetic diploid carps was observed. A high yield of gynogenetic diploids (3.9% of fertilized eggs) and their relatively high rate of survival were observed in the second generation of artificially induced gynogenesis.
mesh_terms: D000818:Animals; D002347:Carps / Q000502:physiology*; D004171:Diploidy; D005260:Female; D008297:Male; D010312:Parthenogenesis; D011831:Radiation Genetics; D013094:Spermatozoa / Q000528:radiation effects*
vernacular_title: Issledovaniia po diploidnomu radiatsionnomu ginogenezu u karpa. Soobshchenie I. Opyty massovogo polucheniia diploidnogo ginogeneticheskogo potomstva