DIGESTION OF PROTEIN BY PREMATURE INFANTS

[摘要] Absorption of N from cow's milk mixtures supplemented with equal amounts of N as casein and casein hydrolysates was determined in 20 metabolic periods on five premature infants.The supplemental protein or hydrolysate furnished from 33.3 to 46.2% of the nitrogen intake and total N fed was equivalent to 4.22 to 8.49 G. protein/kg. body weight. With either supplement from 86 to 94% of the dietary N was absorbed and neither resulted in consistently superior nitrogen absorption.Weight gains were not consistently better during either type of supplemental feeding.The evidence of equally satisfactory nitrogen absorption and weight gain would substantiate the prevailing belief that protein digestion is not impaired after premature birth.

[学科分类] 儿科学