Luteinizing HormoneEstrogensGonadotropin-Releasing HormoneFollicle Stimulating HormoneReceptors, LHEstradiolReceptors, EstrogenLuteinizing Hormone, beta SubunitTestosteroneProgesteroneEstrogen Receptor alphaHormonesChorionic GonadotropinPituitary GlandOvariectomyOvaryEstrogen Receptor betaOvulationPituitary Hormone-Releasing HormonesProlactinPituitary Gland, AnteriorEstrusCastrationGonadal Steroid HormonesSexual MaturationLeydig CellsEstrogens, Conjugated (USP)Receptors, LHRHCorpus LuteumTestisRadioimmunoassayGonadotropinsThyroid HormonesProestrusGonadotropins, PituitaryFollicular PhaseOvarian FollicleSheepOrchiectomyHypothalamusGranulosa CellsPituitary Hormones, AnteriorDiestrusLuteal PhasePregnancyGlycoprotein Hormones, alpha SubunitReceptors, FSHTriptorelin PamoatePituitary HormonesDrug ImplantsCattleHypogonadismAnestrusPeriodicityAdrenocorticotropic HormoneRats, Inbred StrainsHypothalamus, MiddleAndrostenedioneParathyroid HormoneInhibinsMenstrual CycleEstrous CycleSteroidsFollicle Stimulating Hormone, beta SubunitHypothalamo-Hypophyseal SystemHypophysectomyPreoptic AreaRNA, MessengerFeedbackLeuprolideGonadotropins, EquinePuberty, PrecociousAromataseHormone AntagonistsMenstruationOrgan SizeAndrogensTime FactorsGonadal HormonesEstrogens, CatecholReproductionKisspeptinsEstroneMedian EminenceUterusOvulation DetectionHuman Growth HormoneDihydrotestosteroneOvulation InductionEstrogens, Non-SteroidalBreast NeoplasmsSelective Estrogen Receptor ModulatorsLuteal CellsSwineTheca CellsThyrotropinDose-Response Relationship, DrugReceptors, Thyroid HormonePostpartum PeriodDiethylstilbestrol