Sperm CountSemenSperm MotilityInfertility, MaleSperm HeadSemen AnalysisOligospermiaSpermatogenesisSpermatozoaTestisFertilitySperm CapacitationEpididymisEjaculationAzoospermiaAsthenozoospermiaLepidiumSperm-Ovum InteractionsTestosteroneSperm MaturationInsemination, Artificial, HomologousSperm Injections, IntracytoplasmicFertilizationContraceptive Agents, MaleGenitalia, MaleSemen PreservationSperm TransportOrgan SizeLeukocyte CountSeminiferous TubulesInsemination, ArtificialFollicle Stimulating HormoneVaricoceleVasectomyAcrosomeReproductionMEDLARSPregnancySeminal Plasma ProteinsSperm MidpieceCD4 Lymphocyte CountPlatelet CountInfertilityLuteinizing HormoneSexual AbstinenceSperm BanksPregnancy RateInhibinsSeminal VesiclesChromosomes, Human, YPaternal ExposureGenital Diseases, MaleZona PellucidaEnvironmental PollutantsSexual MaturationTime FactorsHydrocarbons, BrominatedCell CountHypogonadismLitter SizeBlood Cell CountDenmarkSertoli CellsSeminiferous EpitheliumSexual Behavior, AnimalCryopreservationTesticular NeoplasmsSex Hormone-Binding GlobulinSperm WhaleCryptorchidismBody WeightSpermatidsMeiosisOvum