北京市城乡乳母营养状况、乳成分和婴儿摄入母乳量与生长发育关系的研究——Ⅱ、1～6月龄母乳喂养儿摄入的乳量、热能和蛋白质及其生长发育

于北京城区、近郊和远郊调查了201名1～6月龄的全母乳喂养儿的24小时摄乳量。结果表明,男婴平均每天摄入786±155g,女婴为718±167g。除个别月龄外,不同月龄、不同地区之间无显著差异。通过对母乳营养成分的分析得出,婴儿每日每公斤体重摄入的热能1～5个月龄分别为119、96、78、70及69kcal。男女婴儿及三地区之间无显著差异。城区、近郊和远郊区一个月龄的婴儿蛋白质摄入量每日每公斤体重分别为1.93、1.85及2.47g,以远郊区为最高(P<0.005)。这可能与该地区产妇在产后一个月内吃大量鸡蛋有关。三个地区2～5个月的婴儿摄入的蛋白质,城区比郊区低,原因不明。男女婴儿之间无显著差别。婴儿的热能和蛋白质的摄入量除一个月时外都达不到供给量标准。这些婴儿的身长与1975年北京郊区的曲线及WHO推荐的曲线接近,而体重则在1975年北京城区和郊区的曲线之间,高于WHO的推荐值。因此如果母乳够吃,则可以全部母乳喂养到5个月。郊区婴儿的身长较低,但其摄入的乳量及热能和蛋白质并不比城区低,是否是因为其他营养素不足,值得研究。在本调查中个体婴儿的身长体重百分位与其摄乳量及蛋白质、热能摄入量无明显相关。

STUDIES ON THE RELATION BETWEEN THE NUTRITIONAL STATUS OF LACTATING MOTHER AND MILK COMPOSITION AS WELL AS THE MILK INTAKE AND GROWTH OF THEIR INFANTS IN BEIJING Ⅱ .Studies on the breast milk,energy and protein intakes and growth of infants dur

Breast milk consumption in 24 hours of 102 0-6 months old infants in urban, suburban and rural areas of Beijing have been measured. The average breast milk consumption of the male infants was 786 ± 155g, while that of the female infants was 718±167g. There were no significant differences among the three areas. Milk samples were collected and analysed for protein, fat and lactose. It was found that during the first to fifth month of life, the daily average energy intakes per kg body weight were 119, 96, 78, 70 and 69 kcal respectively. There were no significant differences between male and female infants in the three areas. The daily average protein intake per kg body weight of infants of one month old in the three areas were 1.93, 1.85 and 2.47g respectively, with a higher value in the rural area, while that of 2-5 months old infants of three areas were 1.29, 1.54 and 1.49g respectively. The energy and protein intakes of infants of 2-5 months old were all below the Chinese RDA. The body length values of the infants were close to that of the values collected in 1975 in suburban of Beijing and the WHO standard, while the average body weight values were somewhat higher than the WHO standard, but in between of the urban and suburban values of 1975. Therefore it seems that in case when the volume of breast milk is enough for the baby, we ha- ve to encourage breast feeding to 5-6 months old without weaning food. In this study no significant correlation between the body length and weight of the infants and their milk consumption were noticed.