Abstract
The relationship between the bacterial flora on diarrhea of piglets and the climate were investigated. The results obtained are summarized as follows.
In the flora of the feces of piglets, resident organisms were Bacteroidaceae, Lactobacillus, Streptococcus, curved rods, Bifidobacterium, Peptococcaceae, and Escherichia coli. At 8-10 days of age, Clostridium perfringens was not found in the predominant genes.
Rapid recovery from diarrheal feces of piglets showed a decrease in E. coli and an increasing tendency in Lactobacillius, and Bifidobacterium. Few other bacteria showed a great variation among individuals.
In diarrheal piglets, E. coli increased rapidly in the ileum and intestine and lactic acid bacteria decreased in the upper part of the ileum. In one of these piglets C. perfringens seemed to have taken part in the occurrence of colibacillosis.
It was considered that low temperature and high humidity might have stimulated the outbreak of diarrhea of pigiets.
