title: [Cytological study of spontaneous embryonic mortality before implantation in mice of different genotypes].
abstract: Spontaneous preimplantation embryonic mortality was studied cytologically for mice of different strains and their combinations. It was found that this index was determined to a considerable extent by the genotype. Its level varied from 5 to 10% depending on the genotype. The stoppage of embryos' cleavage and, probably, their death occurs mostly at the stage of 2-12 blastomeres.
mesh_terms: D000818:Animals; D001755:Blastocyst / Q000166:cytology*; D001757:Blastomeres / Q000166:cytology; D003433:Crosses, Genetic; D047108:Embryonic Development; D005260:Female; D005313:Fetal Death; D005838:Genotype; D051379:Mice; D008815:Mice, Inbred Strains / Q000196:embryology*; D011247:Pregnancy
vernacular_title: Tsitologicheskoe issledovanie spontannoi émbrional'noĭ smertnosti do implantatsii u mysheĭ raznykh genotipov.