Dewey K G, Lönnerdal B
Acta Paediatr Scand. 1986 Nov;75(6):893-8. doi: 10.1111/j.1651-2227.1986.tb10313.x.
In an experimental study to determine whether augmentation of maternal milk supply affects infant intake, 18 mothers of exclusively breast-fed infants stimulated milk supply by daily expression of extra milk for 2 weeks. Infant milk intake was recorded before, during and after this expression phase. All but 4 mothers increased milk production by greater than 73 g/day over baseline, with an average increase of 124 g/day. On the average, the 14 infants of mothers who increased milk production took in significantly more milk immediately following the expression phase (849 vs. 732 g/day), but about half of them returned to near baseline levels of milk intake after 1-2 weeks. Net change in infant intake at the end of the study was positively correlated with infant weight-for-length (r = 0.59) and age (r = 0.58), and was unrelated to baseline milk intake (r = -0.06). Therefore, the wide range in breast milk volume in well-nourished populations is due more to variation in infant "demand" than to inadequacy of milk production.
在一项旨在确定增加母乳供应量是否会影响婴儿摄入量的实验研究中，18位纯母乳喂养婴儿的母亲通过每天挤出额外的乳汁来刺激乳汁分泌，持续2周。在此挤奶阶段之前、期间和之后记录婴儿的奶量摄入情况。除4位母亲外，其他所有母亲的乳汁分泌量均比基线水平增加了73克/天以上，平均增加量为124克/天。平均而言，乳汁分泌量增加的母亲所生的14名婴儿在挤奶阶段结束后立即摄入的奶量显著增加（849克/天对732克/天），但其中约一半婴儿在1至2周后奶量摄入恢复到接近基线水平。研究结束时婴儿摄入量的净变化与婴儿身长体重比（r = 0.59）和年龄（r = 0.58）呈正相关，与基线奶量摄入无关（r = -0.06）。因此，营养良好人群中母乳量的广泛差异更多是由于婴儿“需求”的变化，而非乳汁分泌不足。
