Gonadal Steroid HormonesEstradiolTestosteroneSex CharacteristicsFertilityOrchiectomyOvariectomySteroidsHormonesProgesteroneLuteinizing HormoneDihydrotestosteroneGonadotropin-Releasing HormoneFollicle Stimulating HormoneCastrationReceptors, SteroidEstrogensGonadal HormonesAndrogensEstrous CycleOvaryFertility PreservationSex DifferentiationSexual MaturationThyroid HormonesPituitary GlandReproductionLeuprolideTestosterone PropionateGonadsHypothalamusEcdysonePregnancyAdrenocorticotropic HormoneTestisSexual Behavior, AnimalReceptors, ProgesteronePreoptic AreaHypogonadismReceptors, AndrogenFollicle Stimulating Hormone, beta SubunitMenstrual CyclePituitary Hormone-Releasing HormonesHydrocortisoneGonadotropins, PituitaryPituitary Gland, AnteriorParathyroid HormoneKisspeptinsReceptors, EstrogenGonadotropinsEcdysteroneRNA, MessengerDehydroepiandrosteroneReceptors, Thyroid HormoneEstrusAdrenal GlandsRadioimmunoassayProlactinHypothalamus, MiddleInfertility, MaleFertility AgentsInfertilityInfertility, FemaleArcuate NucleusRats, Sprague-DawleyGene Expression RegulationReceptors, GlucocorticoidNeurokinin BNeurosecretory SystemsFollicular PhaseHuman Growth HormoneEstrogen Receptor alphaReceptors, LHRHUterusSheepBrainAndrostenedioneSpermatozoaAnalysis of VarianceGlucocorticoidsBirth RatePituitary HormonesProgestinsDexamethasoneVocalization, AnimalEstronePregnenoloneAgingMetamorphosis, BiologicalHormone AntagonistsHormone Replacement TherapyAndrosteroneTriiodothyronineEtiocholanoloneOvulationSperm MotilitySex FactorsImmunohistochemistryMolecular Sequence Data3-Hydroxysteroid Dehydrogenases