OxytocinOxytocicsVasotocinVasopressinsMilk EjectionSupraoptic NucleusNeurophysinsPituitary Gland, PosteriorUterine ContractionMyometriumDinoprostLabor, ObstetricOrnipressinUterusPregnancyParaventricular Hypothalamic NucleusProgesteroneLactationLabor, InducedEstrusCorpus LuteumHypothalamusLuteolysisMaternal BehaviorPregnancy, AnimalPair BondSocial BehaviorSheepTocolytic AgentsHormone AntagonistsLypressinEndometriumPostpartum HemorrhageProstaglandins FLabor Stage, ThirdUterine Inertia