Blastocyst Inner Cell MassBlastocystEmbryonic DevelopmentMorulaEmbryo Culture TechniquesTrophoblastsEmbryonic and Fetal DevelopmentEmbryo, MammalianEmbryo ImplantationBlastomeresOctamer Transcription Factor-3Cleavage Stage, OvumEmbryo TransferEndodermFertilization in VitroEctodermGerm LayersPregnancyZygoteGene Expression Regulation, DevelopmentalChimeraEmbryonic Stem CellsEctogenesisParthenogenesisNuclear Transfer TechniquesCulture TechniquesGATA6 Transcription FactorEmbryo Implantation, DelayedCell LineageCloning, OrganismCell CountCell DifferentiationOocytesTotipotent Stem CellsEar, InnerFetal ViabilityHMGB ProteinsFibroblast Growth Factor 4Pluripotent Stem CellsCryopreservationZona PellucidaMice, Inbred StrainsCulture MediaCells, CulturedNeoplasms, Germ Cell and EmbryonalStem CellsSOXF Transcription FactorsMice, Inbred CBACell AggregationCattle