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Accession number:

Host species (latin):

Oncorhynchus mykiss

Common name:

Trout, Rainbow Freshwater

Disease/condition:

Gill hyperplasia

Location (host):

Gills

Aetiology:

Considered to result from a water quality problem.

Aetiology:

Considered to result from a water quality problem.

Additional Information:

Significance:

100% of fish affected at fry and fingerling stage, 60% mortalities.

Lession:

Marked gill epithelial hyperplasia, oedematous change with fibrous cell proliferation also affecting the buccal epithelial cells.

Stains:

Location:

Trout farm

Area:

Southern England

Country:

Submitter:

D. Bucke

Accession date:

9/29/1979

Images: