Embryo Culture TechniquesEmbryo, MammalianCulture TechniquesBlastocystEctogenesisEmbryonic DevelopmentEmbryo, NonmammalianFertilization in VitroIncubatorsEmbryonic and Fetal DevelopmentCulture MediaTeratogensChick EmbryoEmbryo ImplantationZygotePregnancyCell Culture TechniquesCleavage Stage, OvumOrgan Culture TechniquesAbnormalities, Drug-InducedBacteriological TechniquesEmbryo TransferGene Expression Regulation, DevelopmentalOocytesNeurulationCryopreservationFetal ViabilitySingle Embryo TransferSperm Injections, IntracytoplasmicPregnancy RateBlastomeresReproductive Techniques, AssistedEmbryo LossYolk SacTime FactorsCattleTissue Culture TechniquesLive BirthErgotamineCyproheptadineCells, CulturedFallopian TubesBacteriaMorulaBody PatterningGastrulaBloodPalateEvaluation Studies as TopicMolecular Sequence DataPolymerase Chain ReactionIn Situ HybridizationCell DifferentiationZebrafishPregnancy OutcomeMice, Inbred CBABase SequenceXenopus ProteinsMicrobiological TechniquesMice, Inbred StrainsBacteria, AerobicMesodermBatch Cell Culture TechniquesCongenital AbnormalitiesEmbryo DispositionMorphogenesisGestational AgeColony Count, MicrobialEctodermFertilizationDrosophila ProteinsXenopus laevisDrosophilaPharynxZebrafish ProteinsSensitivity and SpecificityMice, Inbred C57BLFecesCloning, OrganismOogenesisFluorescent Antibody TechniqueNuclear Transfer TechniquesHomeodomain ProteinsCentrifugationRNA, MessengerStem CellsOvumAgarBlastodermEndodermTranscription FactorsPlacentaCell CountXenopusRNA, Messenger, StoredParthenogenesisCell DivisionAmino Acid SequenceEmbryonic InductionSpecimen Handling