TestosteroneCastrationOrchiectomyAndrogensDihydrotestosteroneTestosterone PropionateTestisProstateLuteinizing HormoneEstradiolHypogonadismFlutamideReceptors, AndrogenGonadal Steroid HormonesAndrogen AntagonistsSeminal VesiclesSex Hormone-Binding GlobulinFollicle Stimulating HormoneCyproteroneGonadotropin-Releasing HormoneOrgan SizeDrug ImplantsAndrostenedioneEpitestosteroneSexual MaturationEpididymisSex CharacteristicsAnxiety, Castration5-alpha Reductase Inhibitors3-Oxo-5-alpha-Steroid 4-DehydrogenaseLeuprolideGonadotropins, PituitaryClonixinGenitalia, MaleSexual Behavior, AnimalHormonesHydrocortisoneCyproterone AcetateHormone Replacement TherapyOvariectomySpermatogenesisFinasterideScrotumDehydroepiandrosterone SulfateTosyl CompoundsAndrostane-3,17-diolAzasteroidsNeoplasms, Hormone-DependentTestosterone CongenersRadioimmunoassayAnimal WelfareEstrogensAndrogen Receptor AntagonistsSteroidsAromatasePituitary GlandHornsDehydroepiandrosteroneRats, Inbred StrainsProgesteroneZeranolSperm CountRats, Sprague-DawleyAgingButorphanolCopulationTime FactorsAndrogen-Binding ProteinProlactinBody WeightAnilidesProstate-Specific AntigenEstronePenisChorionic GonadotropinDiethylstilbestrolHaptoglobinsLibidoHirsutismAndrostanesVirilismInhibinsAnesthesia, LocalCryptorchidismKetoprofenPituitary Hormone-Releasing HormonesRandom AllocationRNA, MessengerPreoptic AreaXylazineSeasonsPenile ErectionSheepSex Differentiation17-Hydroxysteroid DehydrogenasesFeminizationAndrosteroneAndrogen-Insensitivity Syndrome17-KetosteroidsOvary