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据全国22个省市抽样分析表明,约40％儿童发锌含量处于低水平,因此,对低锌儿童进行了单独补锌和同时补锌、钙实验。 1 对象和方法 1.1 对象 从大庆市龙凤厂西幼儿园504名儿童中,选2～6岁五个年龄段382名健康儿童(男187名,女195名),对其中低锌儿童(发锌<100μg/g)随机划分为三个组。即低锌对照组91名,低锌补锌组97名,低锌补锌、钙组88名;对高锌儿童(发锌≥100mg/g)选106名为高锌对照组。实验组和对照组对应年龄段的男女数量接近。四个组同时进行实验。 幼儿园儿童每天饮食在家、园各半,主
According to the sampling analysis of 22 provinces and cities nationwide, about 40% of children have a low level of zinc in their hair. Therefore, zinc supplementation and zinc supplementation and calcium supplementation were carried out on children with low zinc. 1 Subjects and Methods 1.1 Subjects From 502 children in Longfeng Factory West Kindergarten of Daqing City, 382 healthy children (187 males and 195 females) aged 5 to 6 years of age were enrolled in this study. 100 μg / g) were randomly divided into three groups. 91 in the low-zinc control group, 97 in the low-zinc supplementation group, 88 in the low-zinc supplementation group and 88 in the calcium group, and 106 in the high-zinc supplemented group (zinc: 100 mg / g). The number of men and women in the corresponding age groups in the experimental group and the control group is close. The four groups are experimenting at the same time. Kindergarten children daily diet at home, garden half, Lord