Weight GainRetinopathy of PrematurityBirth WeightInfant, NewbornGestational AgeInfant, PrematureBody WeightPregnancyWeight LossAnimals, NewbornObesityMolecular WeightPostnatal CareEatingBody Mass IndexOrgan SizeEnergy IntakeDietBody CompositionFetal WeightGrowthTime FactorsEnergy MetabolismInfant, Low Birth WeightFeeding BehaviorWeaningPregnancy ComplicationsOverweightAdipose TissueInstitute of Medicine (U.S.)AgingPrenatal Exposure Delayed EffectsRats, Sprague-Dawley