SemenSemen AnalysisFertilizationInfertility, MaleFertilization in VitroSpermatozoaAsthenozoospermiaSpermatoceleSperm CountVaricoceleOligospermiaSemen PreservationSperm MotilitySperm-Ovum InteractionsOvumOocytesEmbryo TransferZygoteZona PellucidaInsemination, ArtificialCryopreservationPregnancyAcrosomePregnancy RateEjaculationFertilitySperm Injections, IntracytoplasmicSea UrchinsAcrosome ReactionSperm CapacitationInfertility, FemaleCleavage Stage, OvumInfertilityFertilizersOvulation InductionEmbryonic DevelopmentBlastocystSperm HeadMicroinjectionsEgg ProteinsEmbryo ImplantationReproductive TechniquesPregnancy OutcomeEmbryonic and Fetal DevelopmentReproductive Techniques, AssistedVitelline MembraneParthenogenesisInseminationAcrosinFollicular FluidTestisOocyte RetrievalOogenesisEmbryo, MammalianCryoprotective AgentsUrochordataFallopian TubesStarfishSperm TransportMeiosisSperm BanksOvulationInsemination, Artificial, HeterologousOocyte DonationReproductionEpididymisChorionic GonadotropinOvarian FollicleOvuleFollicle Stimulating HormoneSuperovulationMenotropinsSperm RetrievalCattleCumulus CellsSperm TailSeminal Plasma ProteinsEmbryo Culture TechniquesSpermatogenesisVasectomyEchinodermataSwineSeminal Vesicle Secretory ProteinsOvaryTime FactorsIn Vitro Oocyte Maturation TechniquesLive BirthFallopian Tube DiseasesInsemination, Artificial, HomologousAzoospermiaChromomycin A3FreezingAndrologyPollen TubeMicromanipulationPregnancy, MultipleSpermatidsEmbryo, NonmammalianContraception, ImmunologicFertility Agents, Female