OxytocinUterusOxytocicsVasotocinUterine ContractionMyometriumPregnancyVasopressinsMilk EjectionPregnancy, AnimalSupraoptic NucleusLabor, ObstetricProgesteroneDinoprostNeurophysinsPituitary Gland, PosteriorEndometriumEstrusEstradiolEmbryo ImplantationOrnipressinCervix UteriOvariectomyUterine DiseasesSheepDeciduaParaventricular Hypothalamic NucleusLactationProstaglandins FCorpus LuteumLabor, InducedPseudopregnancyUterine NeoplasmsLuteolysisHypothalamusHormone AntagonistsTocolytic AgentsGenitalia, FemaleMaternal BehaviorOvaryPostpartum HemorrhageEstrous CycleFallopian TubesPair BondRNA, MessengerSocial BehaviorParturitionRats, Sprague-DawleyHysterectomyUterine InertiaLypressinEstrogensCesarean SectionRadioimmunoassayPlacentaRelaxinVaginaIn Situ HybridizationPostpartum PeriodArvicolinaeSperm TransportLabor Stage, ThirdCattle