Research Embryo CreationEmbryo Culture TechniquesCulture TechniquesEmbryo, MammalianEctogenesisBlastocystIncubatorsFertilization in VitroEmbryonic DevelopmentCulture MediaTeratogensEmbryonic and Fetal DevelopmentCell Culture TechniquesOrgan Culture TechniquesPregnancyBacteriological TechniquesAbnormalities, Drug-InducedEmbryo ImplantationEmbryo TransferZygoteChick EmbryoNeurulationResearchCleavage Stage, OvumEmbryo, NonmammalianFetal ViabilityOocytesSingle Embryo TransferCryopreservationSperm Injections, IntracytoplasmicReproductive Techniques, AssistedPregnancy RateGene Expression Regulation, DevelopmentalTissue Culture TechniquesYolk SacErgotamineCyproheptadineLive BirthBacteriaTime FactorsEvaluation Studies as TopicCells, CulturedBloodCattlePalateMicrobiological TechniquesPolymerase Chain ReactionBacteria, AerobicPregnancy OutcomeBatch Cell Culture TechniquesResearch Support as TopicFallopian TubesColony Count, MicrobialCongenital AbnormalitiesResearch DesignSensitivity and SpecificityEthics, ResearchMice, Inbred CBAFecesPharynxResearch PersonnelCell DifferentiationCentrifugationAgarSpecimen HandlingEmbryo LossGestational Age