Abstract
The longest life-span was observed in the ICR female mice fed with pasteurized fermented milk, in contrast, no appreciable difference in the life-span could be observed between the mice fed with whole milk and those with the control feed.
Concerning intestinal flora of mice during a long term feeding experiment, no marked change in numbers of Enterobacteriaceae, Streptococcus, and Lactobacillus were recorded among mice fed with the three types of feeds, while the counts of Bifidobacterium in the intestinal flora of mice fed with pasteurized fermented milk were found to be 10 times higher than those of animals fed with either whole milk or the control feed.
