MorulaBlastocystEmbryonic DevelopmentEmbryonic and Fetal DevelopmentEmbryo, MammalianCleavage Stage, OvumEmbryo Culture TechniquesCloning, OrganismZygoteOocytesFertilization in VitroEmbryo TransferBlastomeresParthenogenesisVitrificationFetal ViabilityPregnancyFallopian TubesCulture TechniquesEmbryo ImplantationCattleGene Expression Regulation, DevelopmentalCryopreservationCulture MediaOctamer Transcription Factor-3OvumZona PellucidaFertilizationMice, Inbred StrainsOogenesisTrophoblasts