Receptors, LHLuteinizing HormoneFollicle Stimulating HormoneGonadotropin-Releasing HormonePituitary GlandProgesteroneEstradiolTestosteroneOvulationGonadotropins, PituitaryEstrusPituitary Hormone-Releasing HormonesOvaryChorionic GonadotropinSheepSexual MaturationSecretory RateOvariectomyFollicular PhaseProlactinPituitary Gland, AnteriorProestrusOvarian FollicleCastrationAnestrusCorpus LuteumRadioimmunoassayTestisInhibinsLuteal PhaseLuteinizing Hormone, beta SubunitReceptors, LHRHFeedbackOrchiectomyHypothalamusAndrostenedioneGranulosa CellsPregnancyDrug ImplantsProcollagen-Lysine, 2-Oxoglutarate 5-DioxygenaseOvulation InductionHormone AntagonistsDiestrusGonadotropins, EquineHypothalamic Area, LateralCattleGlycoprotein Hormones, alpha SubunitReceptors, FSHReceptors, GonadotropinFollicle Stimulating Hormone, beta SubunitHypogonadismAnovulationGonadal Steroid HormonesSeasonsTheca CellsBuserelinKisspeptinsMenstrual CycleMedian EminenceHormonesEstrous CyclePostpartum PeriodPolycystic Ovary SyndromeFollicle Stimulating Hormone, HumanHypothalamo-Hypophyseal SystemLight-Harvesting Protein ComplexesPreoptic AreaGonadal HormonesSwineOvulation DetectionHypothalamus, MiddleOrgan SizeSuperovulationGonadotrophsBiological AssayPituitary Hormones, AnteriorTime FactorsRats, Inbred StrainsNaloxonePituitary HormonesHypophysectomyFollicular FluidStimulation, ChemicalFertility Agents, FemaleAndrogensCopulationLactationBromocriptineHorsesLuteal CellsSteroidsAmenorrheaPregnancy, AnimalFertilityTriptorelin Pamoate3-Hydroxysteroid DehydrogenasesDose-Response Relationship, DrugDepression, ChemicalLuteinizationHelplessness, Learned