SpermatozoaSpermatidsSpermatogenesisSperm MaturationSperm HeadTestisSperm CapacitationSperm CountAcrosomeTriethylenemelamineInfertility, MaleEpididymisFertilizationSperm TailAsthenozoospermiaSpermatocytesSperm-Ovum InteractionsSperm MotilityProtaminesFertilitySperm TransportSeminiferous TubulesSperm Injections, IntracytoplasmicAcrosome ReactionSperm MidpieceSertoli CellsSemenMeiosisSperm BanksSemen PreservationMolecular Sequence DataSemen AnalysisZona PellucidaAmino Acid SequenceDrosophila melanogasterCell NucleusChromatinEjaculationSperm WhaleCryopreservationOligospermiaBase SequenceFluorescent Antibody TechniqueMicroscopy, ElectronBlotting, WesternMice, KnockoutMutationOvumProteinsRNA, MessengerImmunohistochemistryCloning, MolecularMice, Inbred C57BLSeminal Plasma ProteinsInsemination, ArtificialSea UrchinsOocytesEgg ProteinsAzoospermiaSexual Behavior, AnimalFallopian TubesSeminal Vesicle Secretory ProteinsVasectomyCryoprotective AgentsWhalesReproductionInseminationPregnancyVitelline MembraneGenitalia, MalePregnancy RateMicroinjectionsDNA FragmentationCopulationReproductive TechniquesAneuploidyOviductsReproductive Techniques, AssistedContraceptive Agents, MaleZygoteCattlePovidoneChromomycin A3Y ChromosomeEpididymal Secretory ProteinsCervix MucusVasovasostomyCell MembraneInsemination, Artificial, HomologousGenitalia, FemaleInsemination, Artificial, HeterologousSwineInfertilityEchinodermataTesticular DiseasesIn Situ Hybridization, FluorescencePregnancy OutcomeFlagellaChromosomes, Human, YTestosterone