Embryo ResearchCloning, OrganismSheepEmbryo, MammalianEmbryo ImplantationBlastocystSheep DiseasesBlastomeresEmbryonic DevelopmentEmbryo, NonmammalianFertilization in VitroChick EmbryoEmbryonic and Fetal DevelopmentPersonhoodSheep, DomesticPregnancyBeginning of Human LifeEmbryo DispositionCryopreservationEmbryo TransferEmbryo Culture TechniquesPregnancy RateZygoteLifePreimplantation DiagnosisGene Expression Regulation, DevelopmentalCulture TechniquesValue of LifeAnatomy, ArtisticMosaicismTheologyEctogenesisMorulaEmbryologyIncubatorsSperm Injections, IntracytoplasmicSingle Embryo TransferFetal ResearchPrenatal InjuriesOocytesGestational AgeResearch Embryo CreationEthylene GlycolEmbryo LossFetal ViabilityMoralsFetusCryoprotective AgentsReproductive TechniquesVitrificationHuman CharacteristicsAneuploidyTrophoblastsCleavage Stage, OvumGamete Intrafallopian TransferPregnancy OutcomeYolk SacMesodermCulture MediaGerm LayersIn Situ HybridizationTime FactorsMorphogenesisZona PellucidaFertilizationCatholicismThiepinsTotipotent Stem CellsNontherapeutic Human ExperimentationEastern OrthodoxyEndometriumEmbryonic Stem CellsPropylene GlycolChromosome AberrationsSheep, BighornMolecular Sequence DataReproductive Techniques, AssistedBones of Upper ExtremityZebrafishNotochordRNA, MessengerFallopian TubesCell DifferentiationGastrulaPhilosophy, MedicalHomeodomain ProteinsBody PatterningImmunohistochemistryCell NucleusBase SequenceCell LineIn Situ Hybridization, FluorescenceInfertility, FemaleTissue SurvivalGoatsPregnancy Trimester, FirstTranscription FactorsUrogenital SystemJaagsiekte sheep retrovirusConjunctivitis