Fetal DevelopmentEmbryonic and Fetal DevelopmentFetusPregnancyMyocytes, CardiacCardiac OutputGestational AgePlacentaHeartArrhythmias, CardiacCardiac Surgical ProceduresDeath, Sudden, CardiacTeratogenesisPrenatal Exposure Delayed EffectsFetal ViabilityGene Expression Regulation, DevelopmentalPlacentationMaternal-Fetal ExchangeMaternal Nutritional Physiological PhenomenaAnimals, NewbornFetal Growth RetardationFetal ResorptionMyocardiumPregnancy, AnimalRNA, MessengerCardiomegalyCardiac TamponadeCardiac Pacing, ArtificialFetal DeathHeart DiseasesTime FactorsAbnormalities, Drug-InducedCardiac CatheterizationEmbryo, MammalianFetal WeightMyocardial ContractionMaternal ExposureHeart ArrestFetal BloodPrenatal Nutritional Physiological PhenomenaInfant, NewbornHeart VentriclesSheepEmbryonic DevelopmentEmbryo ImplantationMice, Inbred C57BLOrgan SizeBirth WeightTrophoblastsMice, TransgenicPregnancy ComplicationsCells, CulturedMyoblasts, CardiacHeart FailureCell DifferentiationCardiomyopathiesRats, Sprague-DawleyTeratogensCardiac MyosinsIn Situ HybridizationCardiac Imaging TechniquesElectrocardiographyImmunohistochemistryLitter SizeCardiac GlycosidesUterusEmbryo Culture TechniquesFetal DiseasesHeart RateEchocardiographyBlastocystEmbryo TransferAmniotic FluidGenomic ImprintingPlacental InsufficiencyCardiac Output, LowGene ExpressionOut-of-Hospital Cardiac ArrestLiverHemodynamicsGene Expression RegulationYolk SacSuperovulationResearch Embryo CreationMyocardial InfarctionMolecular Sequence DataCardiac VolumeMice, KnockoutVentricular RemodelingHeart TransplantationTroponin ISheep, DomesticDisease Models, AnimalVentricular Function, LeftReproductionRats, WistarInsulin-Like Growth Factor IIPregnancy Trimester, ThirdReverse Transcriptase Polymerase Chain ReactionBody Weight