Ziegler E E, O'Donnell A M, Nelson S E, Fomon S J
Growth. 1976 Dec;40(4):329-41.
Published data from chemical analyses of human fetuses have been utilized to construct a reference fetus of representative body composition. For gestational ages 24 through 40 weeks, body composition of the reference fetus is presented, including water, lipid, protein and major minerals. Concentrations of water, sodium, and chloride per unit of body weight decrease with increasing gestational age, whereas those of protein, lipid, calcium, phosphorus, magnesium and potassium increase. From the estimates of body composition at each age and from the gain in body weight, composition of gain and daily increments of body components have been calculated.
已利用从人类胎儿化学分析中公布的数据构建了具有代表性身体成分的参考胎儿。对于24至40周的胎龄，给出了参考胎儿的身体成分，包括水、脂质、蛋白质和主要矿物质。每单位体重的水、钠和氯的浓度随着胎龄增加而降低，而蛋白质、脂质、钙、磷、镁和钾的浓度则增加。根据每个年龄的身体成分估计值以及体重增加情况，计算了体重增加的成分和身体各成分的每日增量。
