Seminiferous TubulesSpermatozoaTestisSpermatogenesisSertoli CellsSperm MotilitySeminiferous EpitheliumEpididymisSpermatidsSpermatogoniaSperm CountAcrosomeKidney Tubules, ProximalInfertility, MaleSemen PreservationRete TestisSperm HeadLeydig CellsKidney TubulesBlood-Testis BarrierSpermatocytesCryptorchidismSperm TransportOrchitisSemenSperm MaturationMalpighian TubulesAcrosome ReactionSperm TailCryopreservationTestosteroneFertilityOrgan SizeEjaculationOligospermiaSexual MaturationKidney Tubules, DistalTesticular DiseasesGerm CellsGenitalia, MaleVasectomyFertilizationAntispermatogenic AgentsSeminal VesiclesFollicle Stimulating HormoneMicroscopy, ElectronSperm AgglutinationZona PellucidaFertilization in VitroInsemination, ArtificialTransilluminationImmunohistochemistryOrnipressinAndrogen-Binding ProteinKidney Tubules, CollectingHistocytochemistrySemen AnalysisBody FluidsSperm RetrievalRats, Sprague-DawleyCryoprotective AgentsAcrosinSwineMicroinjectionsKlinefelter SyndromeChlorohydrinsFallopian TubesSperm Injections, Intracytoplasmicalpha-ChlorohydrinDibutyl PhthalateVas DeferensLuteinizing HormoneInhibinsAsthenozoospermiaRats, WistarCattleRats, Inbred StrainsMesocricetusRNA, MessengerTime FactorsPregnancyMeiosisChlortetracyclineCells, CulturedSex PreselectionToxicity TestsFluorescent Antibody TechniqueSpermatic Cord TorsionCell MembraneIn Situ Nick-End LabelingScrotumMice, Inbred C57BLReproductionSpermatic Cord3-Hydroxysteroid DehydrogenasesSeminal Plasma ProteinsChromomycin A3Cell CountBlotting, WesternTesticular Neoplasms