OvaryEstradiolCorpus LuteumPolycystic Ovary SyndromeProgesterone CongenersEstrusMifepristoneLuteinizing HormoneProgestinsOvulationPregnancyUterusOvarian FollicleOvariectomyLuteal PhasePregnancy, AnimalGranulosa CellsEndometriumReceptors, EstrogenFollicle Stimulating HormoneChorionic GonadotropinHormone AntagonistsMenstrual CycleEstrogensLuteal CellsDinoprostHydroxyprogesteronesPseudopregnancyCricetinaeEstrous CycleGonadal Steroid HormonesFollicular Phase20-alpha-DihydroprogesteroneGonanesSteroidsOviductsCHO CellsSheepNorpregnadienesLuteolysisAndrostenedioneCastrationTestosterone3-Hydroxysteroid DehydrogenasesCattleProlactinPregnenoloneGonadotropins, Equine20-Hydroxysteroid DehydrogenasesRadioimmunoassayGonadotropin-Releasing HormoneOxytocinAdministration, IntravaginalMyometriumBreast NeoplasmsRNA, MessengerDiestrusTheca CellsImmunohistochemistryCricetulusFollicular Fluid5-alpha-DihydroprogesteroneProestrusPregnancy MaintenanceMenstruationProgesterone ReductaseSexual MaturationEmbryo ImplantationAnestrusGonadotropinsProstaglandins FEstroneMedroxyprogesteroneProgesterone-Binding Globulin17-alpha-HydroxyprogesteroneHormonesPregnanoloneMedroxyprogesterone AcetateCholesterol Side-Chain Cleavage EnzymeOvulation InductionOocytesTime FactorsEstrus SynchronizationAnovulationCorpus Luteum MaintenancePregnanediolCells, CulturedLabor, ObstetricPostpartum PeriodPregnanedionesFollicular AtresiaSuperovulationSwineFertilityDose-Response Relationship, DrugReceptors, EstradiolInsemination, ArtificialOvarian CystsDrug ImplantsEstrogen Receptor alpha