Fetal WeightPregnancyGestational AgeUltrasonography, PrenatalFetal DevelopmentFetusBirth WeightBody WeightPlacentaFetal Growth RetardationPregnancy Trimester, ThirdPregnancy, AnimalEmbryonic and Fetal DevelopmentWeight GainFetal MacrosomiaBiometryLitter SizeWeight LossInfant, NewbornOrgan SizePregnancy Trimester, SecondMaternal-Fetal ExchangeAmniotic FluidUmbilical ArteriesPregnancy OutcomeFetal Nutrition DisordersUterusMolecular WeightAnthropometryFetal MonitoringFetal ResorptionPlacental CirculationAbnormalities, Drug-InducedCrown-Rump LengthFetal DeathPregnancy ComplicationsPregnancy, TwinFetal HeartOligohydramniosFetal ViabilityPregnancy, ProlongedParityPregnancy in DiabeticsTwinsMaternal Nutritional Physiological PhenomenaInfant, Small for Gestational AgePrenatal Exposure Delayed EffectsInfant, PrematureTeratogensReproducibility of ResultsFetal BloodProspective StudiesAbdomenPredictive Value of TestsPremature BirthSwineParietal BoneReference ValuesPregnancy, High-RiskSheepUltrasonographyMaternal ExposurePolyhydramniosPregnancy Trimester, FirstSensitivity and SpecificityCesarean SectionThighInfant, Low Birth WeightReproductionPlacental InsufficiencyPre-EclampsiaAnimal Nutritional Physiological PhenomenaRegression AnalysisFemurRandom AllocationUmbilical CordFetal DiseasesLactationEmbryo TransferNutrition DisordersFetofetal Transfusion