Fetal DevelopmentGrowth HormoneEmbryonic and Fetal DevelopmentReceptors, SomatotropinFetusPregnancySwineBlood Urea NitrogenWeight GainInsulin-Like Growth Factor IMuscle DevelopmentRandom AllocationPlacentaGestational AgeCattleEatingMeatOrgan SizePregnancy, AnimalHormonesBody CompositionVisceraTeratogenesisDrug ImplantsPrenatal Exposure Delayed EffectsFetal ViabilityGrowth Hormone-Releasing HormonePlacentationSheepRecombinant ProteinsMaternal Nutritional Physiological PhenomenaMaternal-Fetal ExchangeBody WeightInsulin-Like Growth Factor IIAbomasumAdipose TissueMusclesGene Expression Regulation, DevelopmentalLiverFetal Growth RetardationFetal ResorptionInjections, IntramuscularAnimals, NewbornRNA, MessengerFatty Acids, NonesterifiedLactationInsulinBlood GlucosePlacental LactogenLeast-Squares AnalysisFetal DeathSexual MaturationMilkProlactinAbnormalities, Drug-InducedFetal WeightReproductionOvarySomatostatinSuccinimidesMetacarpusMaternal ExposureEmbryo, MammalianAnimal FeedPrenatal Nutritional Physiological PhenomenaFetal BloodNitrogenEmbryo ImplantationAnimal Nutritional Physiological PhenomenaRadioimmunoassayDietary ProteinsInjections, SubcutaneousEmbryonic DevelopmentBirth WeightTrophoblastsInsulin-Like Growth Factor Binding ProteinsMuscle, SkeletalDose-Response Relationship, DrugPregnancy ComplicationsProgesteroneTime FactorsPituitary GlandInfant, NewbornInsulin-Like Growth Factor Binding Protein 2TeratogensReceptors, ProlactinLitter SizeDelayed-Action PreparationsEmbryo Culture TechniquesUterusEmbryo TransferGenomic ImprintingBlastocystAmniotic FluidReceptors, SomatostatinPlacental InsufficiencyBlotting, NorthernSuperovulationIn Situ HybridizationResearch Embryo Creation