ParturitionLabor, ObstetricPregnancy, AnimalPregnancyPostpartum PeriodLactationMyometriumOxytocinCervical RipeningProgesteroneUterine ContractionPlacenta, RetainedLabor, InducedUterusExtraembryonic MembranesReceptors, OxytocinCattleMacropodidaeColostrumRelaxinMilkAmnionDinoprostFlumethasoneDystociaAnimals, SucklingPlacentaLitter SizePubic SymphysisGestational AgeMammary Glands, AnimalObstetric Labor, PrematureProstaglandins FSheepCervix UteriMarsupialiaAnimals, NewbornOxytocicsEstrusLabor OnsetReproductionMaternal BehaviorParturient ParesisFetusCarthamus tinctoriusAmniotic FluidCattle DiseasesTerm BirthMaternal-Fetal ExchangeSwineCorpus LuteumEstradiolArtiodactylaProlactinTime FactorsEstroneBody WeightParityAnimal Nutritional Physiological PhenomenaRadioimmunoassayChorionGoatsFetal DeathPinus ponderosaPlant PoisoningOvaryRandom AllocationPinnipediaPuerperal InfectionObstetric Labor ComplicationsCell Nucleus ShapeEndometritisLabor Stage, First20-alpha-DihydroprogesteroneDeciduaMilk EjectionPregnancy MaintenanceAnimal FeedWeaningEmbryo Implantation, DelayedHydrocortisoneProstaglandinsDairyingCell Nucleus DivisionThermometryEstrous CycleReceptors, ProstaglandinRitodrineUterine DiseasesProstaglandins F, SyntheticRNA, MessengerMaternal Nutritional Physiological PhenomenaBirth WeightAnimals, ZooChorioamnionitis20-Hydroxysteroid DehydrogenasesPregnancy ComplicationsPremature BirthEstrogensDiet