SCANNING AND TRANSMISSION ELECTRON MICROSCOPICAL OBSERVATIONS ON HEXAMITA-SALMONIS (MOORE, 1922) RELATED TO MORTALITIES IN RAINBOW-TROUT FRY SALMO-GAIRDNERI RICHARDSON

被引：34

作者：

FERGUSON, HW ^{[1
]}

机构：

[1] VET RES LABS, BELFAST, ANTRIM, NORTH IRELAND

来源：

JOURNAL OF FISH DISEASES | 1979年 / 2卷 / 01期

关键词：

D O I：

10.1111/j.1365-2761.1979.tb00140.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Abstract. Examination of the digestive tract of rainbow trout fry infected with Hexamita salmonis revealed no pathological changes in the epithelial cells of the pyloric caeca or upper intestine even where the parasites were closely apposed to the brush border of these cells. No invasion of the epithelium by the parasites was observed, although examples of shrinkage necrosis (apoptotic bodies) of epithelial cells were often found. The ultrastructure of the parasite resembled that of the closely related Giardia lamblia. Despite the lack of pathological changes to the intestinal epithelium, treatment of the fish to remove the parasites greatly reduced mortalities. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：57 / 67

页数：11

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