Estrous CycleEstrusProgesteroneLuteinizing HormoneCell CycleFollicle Stimulating HormoneHormonesCorpus LuteumDiestrusEstradiolOvaryProestrusGonadotropin-Releasing HormoneOvulationUterusPregnancy, AnimalThyroid HormonesOvariectomyPregnancyDinoprostGonadal Steroid HormonesCattleEndometriumOvarian FollicleLuteal PhaseLuteolysisMenstrual CycleParathyroid HormoneSheepFollicular PhaseRNA, MessengerEstrus SynchronizationAdrenocorticotropic HormoneAnestrusRadioimmunoassayPituitary GlandReceptors, Thyroid HormoneEstrogensReproductionHuman Growth HormoneTime FactorsInhibinsSwineProlactinLuteal CellsOxytocinPituitary Gland, AnteriorFallopian TubesSexual MaturationPituitary HormonesTestosteroneFertilityGenitalia, FemaleVaginaPseudopregnancyCell Cycle ProteinsPostpartum PeriodEstrus DetectionFollicle Stimulating Hormone, beta SubunitImmunohistochemistryMyometriumFollicular AtresiaChorionic GonadotropinTriiodothyronineEmbryo ImplantationProstaglandins FJuvenile HormonesRats, Sprague-DawleyPituitary Hormone-Releasing HormonesGene Expression RegulationGranulosa CellsFollicular FluidHormone Replacement TherapyHypothalamusSuperovulationPregnancy ProteinsHormone AntagonistsOrgan SizeProgestinsDrug ImplantsGrowth Hormone-Releasing HormoneGene ExpressionProgesterone CongenersInsemination, ArtificialPregnenedionesSteroidsRandom AllocationReverse Transcriptase Polymerase Chain ReactionAndrostenedioneHydrocortisoneCastrationGonadotropinsCorticotropin-Releasing HormoneRats, Inbred StrainsAnti-Mullerian HormoneMolecular Sequence DataHypothalamic HormonesReceptors, ProgesteronePeptide HormonesIn Situ Hybridization