SheepEmbryo, MammalianBlastocystEmbryonic Stem CellsStem CellsEmbryonic DevelopmentEmbryo Culture TechniquesEmbryonic and Fetal DevelopmentSheep DiseasesRheumatoid FactorSheep, DomesticPluripotent Stem CellsFeeder CellsBlastomeresGene Expression Regulation, DevelopmentalPregnancyHemagglutination TestsBetamethasoneCell DifferentiationEmbryo ImplantationFetusInduced Pluripotent Stem CellsEmbryo, NonmammalianCell Culture TechniquesEndodermZygoteMorulagamma-GlobulinsChick EmbryoGerm LayersErythrocytesCleavage Stage, OvumEmbryo ResearchCell LineageEctogenesisStem Cell TransplantationBlastocyst Inner Cell MassAnimals, NewbornHematopoietic Stem CellsFetal HypoxiaFertilization in VitroIn Situ HybridizationCell LineGestational AgeAdult Stem CellsEctodermMesodermOocytesBody PatterningOctamer Transcription Factor-3Molecular Sequence DataFibroblast Growth Factor 4Mice, Inbred C57BLMorphogenesisMice, Inbred StrainsMice, Inbred ICRCryopreservationBase SequencePrenatal Exposure Delayed EffectsTranscription FactorsTrophoblastsCells, CulturedHomeodomain ProteinsRNA, MessengerArthritis, RheumatoidEmbryo DispositionHematopoietic Stem Cell TransplantationEmbryo LossTeratomaStem Cell NicheCulture TechniquesNeural Stem CellsPersonhoodTime FactorsSignal TransductionMice, Inbred CBABeginning of Human LifeCloning, OrganismGastrulaMultipotent Stem CellsImmunohistochemistryEmbryo TransferDNA-Binding ProteinsVisceraModels, BiologicalMice, KnockoutMesenchymal Stem Cell TransplantationFetal ViabilityCloning, MolecularMesenchymal Stromal CellsAgingMutationGenomic ImprintingStem Cell FactorYolk SacMice, Mutant StrainsTranscription, GeneticAmino Acid SequencePregnancy RatePhenotype