Luteinizing HormoneGonadotropin-Releasing HormoneFollicle Stimulating HormoneReceptors, LHLuteinizing Hormone, beta SubunitTestosteroneEstradiolProgesteroneChorionic GonadotropinHormonesPituitary GlandOvulationOvaryPituitary Hormone-Releasing HormonesProlactinPituitary Gland, AnteriorEstrusOvariectomyCastrationSexual MaturationReceptors, LHRHLeydig CellsCorpus LuteumGonadal Steroid HormonesThyroid HormonesRadioimmunoassayTestisGonadotropinsProestrusGonadotropins, PituitaryFollicular PhaseOvarian FollicleSheepOrchiectomyPituitary Hormones, AnteriorGranulosa CellsHypothalamusGlycoprotein Hormones, alpha SubunitLuteal PhaseDiestrusTriptorelin PamoatePituitary HormonesReceptors, FSHPregnancyAnestrusPeriodicityAdrenocorticotropic HormoneHypogonadismCattleDrug ImplantsRats, Inbred StrainsInhibinsParathyroid HormoneHypothalamus, MiddleFollicle Stimulating Hormone, beta SubunitHypothalamo-Hypophyseal SystemHypophysectomyAndrostenedioneFeedbackLeuprolideGonadotropins, EquinePuberty, PrecociousSteroidsPreoptic AreaMenstrual CycleGonadal HormonesHormone AntagonistsEstrous CycleEstrogensMedian EminenceOvulation DetectionMenstruationKisspeptinsHuman Growth HormoneOvulation InductionReproductionLuteal CellsThyrotropinTheca CellsOrgan SizeReceptors, GonadotropinTime FactorsSwinePostpartum PeriodReceptors, Thyroid HormoneAnovulationAndrogensRNA, MessengerDihydrotestosteroneGonadotrophsSecretory RateHydrocortisoneBuserelinNaloxoneEndorphinsAmenorrheaCyclic AMPFertilityFollicle Stimulating Hormone, HumanDose-Response Relationship, Drug