保菌犬の消化管およびリンパ節におけるサルモネラの体内分布

概要

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Apparently healthy stray dogs were examined for salmonellae. The organisms were isolated frequently from the caecum, colon and ileum with the number from 10^2 to 10^6/100 g. Of 27 carriers examined for distribution of the organisms in the ileal, caecal and colic segments, 15 cases harboured the organisms in the content and mucosa of all the segments, and the remaining 12 only in the content and/or mucosa of some segments. In the former animals, the mucosa of the most neibouring segments to the ostium ileocaecocolicum harboured the highest number of the organisms. The jejunal lymph node gave the highest positivity among the lymph nodes and harboured 10^2 to 10^6/100 g organisms. The gastric and duodenal lymph nodes had 10^2 to 10^7/100 g organisms, though the recovery rate was rather low. The organisms were recovered rarely from the liver and spleen, but not from the gall bladder and bile. Almost all the carriers excreted not a few number of the organisms in the feces for a certain period, and the animals observed for a long term shed the same serotype for 2 to 3 months or more. It is suggested that the organisms localize and multiply in the digestive tract of dog carriers, especially in the mucosae of adjacent parts to the ostium ileocaecocolicum.
社団法人日本獣医学会の論文
1976-06-25