Sperm CountEmbryo, MammalianSperm HeadOvumEmbryo, NonmammalianSperm CapacitationChick EmbryoEmbryo ImplantationOvalbuminOvum TransportSperm MaturationBlastocystSperm Injections, IntracytoplasmicFertilizationSperm-Ovum InteractionsEmbryonic DevelopmentSperm TransportAcrosomeInfertility, MaleCryopreservationSperm MidpieceEmbryonic and Fetal DevelopmentPregnancySemenZona PellucidaSemen PreservationSperm BanksEmbryo LossFertilization in VitroGene Expression Regulation, DevelopmentalEpididymisOocytesZygoteCleavage Stage, OvumBlastomeresFertilitySemen AnalysisTestisMorulaSea UrchinsFallopian TubesEjaculationPregnancy RateEmbryo DispositionInsemination, ArtificialOligospermiaZebrafishSperm WhaleGastrulaMolecular Sequence DataBody PatterningIn Situ HybridizationEgg ProteinsMicroinjectionsSuperovulationCulture TechniquesCloning, OrganismMorphogenesisSingle Embryo TransferCattleEmbryo ResearchVitelline MembraneTime FactorsCryoprotective AgentsParthenogenesisMesodermEctogenesisAmino Acid SequenceSeminal Plasma ProteinsNuclear Transfer TechniquesAsthenozoospermiaProtaminesEctodermRNA, MessengerZebrafish ProteinsPregnancy OutcomeBase SequenceMice, Inbred StrainsReproductive TechniquesOvulationMice, TransgenicOviductsMice, Inbred ICRAntigensXenopus ProteinsImmunoglobulin EMice, KnockoutSeedsAllergensDrosophilaAneuploidyDrosophila ProteinsCell DifferentiationHomeodomain ProteinsSexual Behavior, AnimalUrochordataCell NucleusFetal ViabilityTranscription FactorsPreimplantation Diagnosis