Bullen C L, Willis A T
Br Med J. 1971 Aug 7;3(5770):338-43. doi: 10.1136/bmj.3.5770.338.
From in-vitro studies of breast and cow's milk preparations, and of the faeces from breast-fed and bottle-fed infants, a number of factors seemed likely to influence the production and maintenance of a lactobacillary flora and low pH in the faeces of newborn infants. These were mainly attributable to the nature of the feed. It is suggested that responsible factors in breast milk include its high lactose, low protein, low phosphate content, together with its poor buffering capacity. Importance is also attached to the fact that breast milk seems to provide a fluid feed of small bulk and low residue, and that its use is unlikely to include periods of starvation. Cow's milk, on the other hand, which has a low lactose, high protein, high phosphate content, and a high buffering capacity, is a relatively bulky, high-residue feed. Feeding regimens which employ it are likely to include periods of starvation.
通过对母乳和牛奶制品以及母乳喂养和奶瓶喂养婴儿粪便的体外研究，一些因素似乎可能影响新生儿粪便中乳酸菌菌群的产生和维持以及低pH值。这些主要归因于喂养方式的性质。有人认为，母乳中的相关因素包括其高乳糖、低蛋白、低磷酸盐含量以及其较差的缓冲能力。母乳似乎能提供少量、低残渣的流质食物，且使用母乳不太可能出现饥饿期，这一点也很重要。另一方面，牛奶乳糖含量低、蛋白质含量高、磷酸盐含量高且缓冲能力强，是一种相对体积较大、高残渣的食物。采用牛奶的喂养方案很可能包括饥饿期。
