Chavalittamrong B, Suanpan S, Boonvisut S, Chatranon W, Gershoff S N
Am J Clin Nutr. 1981 Jun;34(6):1126-30. doi: 10.1093/ajcn/34.6.1126.
The protein, amino acids, and nonprotein nitrogen of milk samples obtained from Thai mothers over a period of 0 to more than 270 days postpartum were determined. Protein levels decreased from 1.56% during the 1st wk to a low of about 0.6% from 180 to 270 days and then rose to about 0.7%. The amino acid pattern of the milks suggested a number of differences in their composition and those of samples analyzed in other countries. Nonprotein nitrogen varied from 20 to 40% of the total nitrogen of the milk. It has been concluded that the need for supplementation of breast-fed Thai babies may occur earlier than many nutritionists advocate.
对泰国母亲产后0至270多天期间采集的母乳样本中的蛋白质、氨基酸和非蛋白氮进行了测定。蛋白质水平从产后第1周的1.56%下降，在180至270天降至约0.6%的低点，然后又升至约0.7%。母乳的氨基酸模式表明其成分与其他国家分析的样本存在一些差异。非蛋白氮占母乳总氮的20%至40%。得出的结论是，泰国母乳喂养婴儿的补充需求可能比许多营养学家主张的时间更早出现。
