4～6月龄婴儿能量需要量研究

ENERGY REQUIREMENT OF 4 6 MONTHS OLD CHINESE INFANT

用双标记水法对广东２３名４月龄和２１名６月龄健康婴儿的总能量消耗进行为期８天的测量，用称重法测定婴儿２４小时母乳和食物摄入量，计算婴儿的能量摄入量，通过测定婴儿的体重变化估计生长的能量贮留，以了解婴儿的能量摄入是否满足其基础代谢、活动和生长等的需要。结果：母乳组和人工喂养组４月龄婴儿的能量摄入分别为３３０±６０和４０２±４６ｋＪ／（ｋｇ·ｄ），能量贮留分别为４９±１９和４９±１９ｋＪ／（ｋｇ·ｄ），能量消耗分别为２６８±７９和３２６±７９ｋＪ／（ｋｇ·ｄ）。母乳组和人工喂养组６月龄婴儿的能量摄入分别为３４７±７１和３８９±８８ｋＪ／（ｋｇ·ｄ），能量贮留分别为１８±１１和２９±１１ｋＪ／（ｋｇ·ｄ），能量消耗分别为３２２±９６和３４３±１２１ｋＪ／（ｋｇ·ｄ）。４～６月龄婴儿的能量需要量估计为３７３ｋＪ／（ｋｇ·ｄ）。

The energy expenditure of 23 healthy 4 mo and 21 healthy 6 mo old infants were measured for 8 days using doubly labelled water method in Xinhui county,Guangdong,China.24 hour breast milk and weaning food intakes of the subjects were determined by using weighing method.The energy intake of infants was estimated according to food intake.The energy stored in body was estimated from the body weight difference during the period of study.Mean energy intake was 330±60 kJ/(kg·d) for breast fed (BF) infants aged 4 mo,402±46kJ/(kg·d) for formula fed (FF) infants aged 4 mo,347±71(BF) and 389±88kJ/(kg·d)(FF) for 6 mo infants.Mean energy stored in body was 49±19 kJ/(kg·d)(BF) and 49±19kJ/(kg·d) (FF) for 4 mo old infants,18±11kJ/(kg·d)(BF) and 29±11 kJ/(kg·d) (FF) for 6 mo old infants.Mean total energy expenditure was 268±79(BF) and 326±79KJ/(kg·d) (FF) for 4 mo infants,322±96(BF)and 343±161kJ/(kg·d)(FF) for 6 mo infants.The energy requirement for 4 6 mo old infant is recommended as 373 kJ/(kg·d).