Sperm CountSperm HeadSperm CapacitationEgg YolkOvumSperm MaturationEgg ProteinsSperm-Ovum InteractionsFertilizationSperm TransportAcrosomeSperm Injections, IntracytoplasmicInfertility, MaleEgg ShellSperm MidpieceEgg WhiteSemenSperm BanksSemen PreservationEpididymisZona PellucidaSemen AnalysisParasite Egg CountFertilityTestisEjaculationCryopreservationSperm WhaleOvipositionOligospermiaEgg HypersensitivityOocytesZygoteVitelline MembraneSeminal Plasma ProteinsAsthenozoospermiaProtaminesInsemination, ArtificialReproductionSea UrchinsSexual Behavior, AnimalFallopian TubesEchinodermataAzoospermiaMicroinjectionsInseminationCryoprotective AgentsSeminal Vesicle Secretory ProteinsOviductsPregnancyUrochordataVasectomyWhalesEgg Proteins, DietaryCopulationPregnancy RateGenitalia, MaleMeiosisMolecular Sequence DataStarfishSpermatozoaDNA FragmentationCattleOogenesisParthenogenesisReproductive Techniques, AssistedAneuploidyReproductive TechniquesChickensChromatinCell MembraneCalciumPovidoneContraceptive Agents, MaleAmino Acid SequenceTime FactorsEpididymal Secretory ProteinsMicroscopy, ElectronSpecies SpecificityY ChromosomeChromomycin A3SwineCervix MucusSchistosoma mansoniGenitalia, FemaleEmbryonic DevelopmentSex RatioVasovasostomyNesting BehaviorCell NucleusCytoplasmOviparityInfertilityInsemination, Artificial, HeterologousInsemination, Artificial, HomologousClutch SizeXenopus laevisBlastocystFreezingSeminiferous Tubules