Section 1
Chapter 743

Scanning and transmission electron microscopical observations on Hexamita salmonis (Moore, 1922) related to mortalities in rainbow trout fry Salmo gairdneri Richardson

Ferguson, H.W.

Journal of Fish Diseases 2(1): 57-67


ISSN/ISBN: 0140-7775
DOI: 10.1111/j.1365-2761.1979.tb00140.x
Accession: 000742144

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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.

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