広島湾産マガキOstrea gigasに見られる炎症性病変の病理組織学的研究-II

概要

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The oyster culture in Hiroshima Bay have been damaged in high mortality in summer recently. The present authors reported in the previous paper on the histo-pathological findings of these dead oysters, the exsitence of inflammatory changes in their tissues. These changes are commonly found on the diseased oysters at various places in Japan, and are classified into two forms, the exsudative form and the nodular one. The former is found either at the earlier stage of disease or in the oysters with some resistance. The bacillus which shows special pigment corpuscle at both end and either Gram positive or negative type are found by the Gram staining, and especially there are many bacillus in the tubercle. These tubercles are in the connective tissue around the intestinal canal. So, inflammation may be caused from the intestinal canal or by external injury.
公益社団法人日本水産学会の論文