Sperm CountSperm HeadSperm CapacitationSperm MaturationSperm TransportSperm-Ovum InteractionsSperm Injections, IntracytoplasmicAcrosomeInfertility, MaleSperm MidpieceFertilizationSemenSperm BanksSemen PreservationEpididymisSemen AnalysisZona PellucidaTestisEjaculationFertilitySperm WhaleCryopreservationOligospermiaOvumSeminal Plasma ProteinsAsthenozoospermiaProtaminesInsemination, ArtificialSea UrchinsOocytesEgg ProteinsAzoospermiaSexual Behavior, AnimalFallopian TubesSeminal Vesicle Secretory ProteinsPregnancyVasectomyCryoprotective AgentsWhalesReproductionInseminationVitelline MembraneGenitalia, MalePregnancy RateMicroinjectionsTime FactorsDNA FragmentationCopulationCattleReproductive TechniquesAneuploidyOviductsReproductive Techniques, AssistedContraceptive Agents, MaleZygoteSwinePovidoneChromomycin A3Y ChromosomeEpididymal Secretory ProteinsCervix MucusVasovasostomyChromatinMolecular Sequence DataCell MembraneInsemination, Artificial, HomologousGenitalia, FemaleMeiosisInsemination, Artificial, HeterologousMicroscopy, ElectronIn Situ Hybridization, FluorescenceSeminiferous TubulesInfertilityEchinodermataSpecies SpecificityPregnancy OutcomeTesticular DiseasesTestosteroneFreezingAmino Acid SequenceFlagellaChromosomes, Human, YCalciumOrgan SizeIonophoresAcridine OrangeTreatment OutcomeContraception, ImmunologicHorsesSex RatioUrochordataVaccines, ContraceptiveSeminal Vesiclesalpha-ChlorohydrinMice, Inbred ICRCell NucleusEmbryonic DevelopmentTissue and Organ HarvestingScrotumRetrospective Studies