ParturitionLabor, ObstetricPregnancy, AnimalPregnancyPostpartum PeriodLactationMyometriumProgesteroneOxytocinCervical RipeningUterine ContractionUterusPlacenta, RetainedLabor, InducedExtraembryonic MembranesReceptors, OxytocinMacropodidaeGenitalia, FemaleCattleReproductionColostrumRelaxinLitter SizeMilkAmnionAnimals, SucklingDinoprostDystociaFlumethasonePlacentaEstrusMammary Glands, AnimalGestational AgePubic SymphysisEstradiolAnimals, NewbornObstetric Labor, PrematureCervix UteriProstaglandins FMarsupialiaSheepMaternal BehaviorOxytocicsSex CharacteristicsBody WeightSexual Behavior, AnimalOvaryLabor OnsetFetusMaternal-Fetal ExchangeParturient ParesisProlactinAmniotic FluidCarthamus tinctoriusCorpus LuteumTime FactorsTerm BirthCattle DiseasesArtiodactylaParityEstroneSwineEstrous CycleRadioimmunoassayFertilityAnimal Nutritional Physiological PhenomenaFetal DeathRandom AllocationSex FactorsChorionOvariectomyGoatsPlant PoisoningPinus ponderosaEstrogensPinnipediaPuerperal InfectionObstetric Labor ComplicationsWeaningEndometritisPregnancy MaintenanceCell Nucleus ShapeLabor Stage, FirstDeciduaAnimal FeedLuteinizing HormoneEmbryo Implantation, DelayedCopulation20-alpha-DihydroprogesteroneMilk EjectionHydrocortisoneCell Nucleus DivisionOvulationCastrationProstaglandinsThermometryDairyingUterine DiseasesMaternal Nutritional Physiological PhenomenaGonadal Steroid Hormones