广西三江县侗族乳母乳汁中钙、锌、铜、铁、锰元素含量的调查分析

目的了解广西三江县侗族乳母乳汁中的钙、锌、铜、铁、锰含量,指导产妇合理饮食。方法收集120名广西三江县侗族乳母产后0～6个月的乳汁,用火焰发射光谱法测定钙、用原子吸收分光光度法测定锌、铜、铁、锰的含量,并对乳母进行膳食调查。结果乳母铁每日平均摄入量高于DRIs标准（P〈0.05）,钙、锌平均摄入量低于DRIs标准（P〈0.01）;满月前乳母乳汁中铁含量高于参考值,满月后母乳汁钙、锌、铁含量低于参考值。结论乳母膳食中营养素摄取量对乳汁中元素含量有一定的影响,应加强对乳母尤其是少数民族农村地区乳母的营养指导,改变哺乳期不均衡的膳食习惯。建议广西三江县侗族乳母适当增加钙、锌、铁的摄入量。

A Study on Ca,Zn,Cu,Fe and Mn in Breast Milk of the Lactating Mother of Dong Nationality in Sanjiang of Guangxi

Objective To study the concentrations of Ca,Zn,Cu,Fe and Mn in breast milk of the lactating mother in Sanjiang of Guangxi.Methods Breast milk samples were collected from 120 lactating mothers in Sanjiang.Ca,Zn,Cu,Fe and Mn in human milk were measured.Dietary composition of the enrolled lactating mothers was investigated.Results The Dong lactating mothers＇daily intakes of Fe were notable higher than that of the DRIS standard（P〈0.05）,while Ca and Zn were lower than those of the standard,respectively（P〈0.01） .In the first month,the milk Fe of the lactating mothers in Sanjiang was higher than those of the reference value;And in the following months,the milk Ca,Zn and Fe were generally lower than those of the reference value.Conclusion Efforts should be made to enhance the nutrition education among the local women during lactation period.We suggest that pregnant and lactating women in Sanjiang should increase their intake of Ca,Zn and Fe.