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Effects of whirling disease on selected hematological parameters in rainbow trout

Journal of Wildlife Diseases

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Abstract

Hematological responses to whirling disease in rainbow trout (Oncorhynchus mykiss) were investigated. Two-mo-old fingerling rainbow trout were exposed to cultured triactinomyxon spores of Myxobolus cerebralis at 9,000 spores/fish in December, 1997. Twenty-four wks post-exposure, fish were taken from infected and uninfected groups for peripheral blood and cranial tissue sampling. Histological observations on cranial tissues confirmed M. cerebralis infection in all exposed fish. Differences in hematological parameters between the two groups included significantly lower total leukocyte and small lymphocyte counts for the infected fish. No effects on hematocrit, plasma protein concentration, or other differential leukocyte counts were noted.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Effects of whirling disease on selected hematological parameters in rainbow trout
Series title:
Journal of Wildlife Diseases
Volume
37
Issue:
2
Year Published:
2001
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Wildlife Diseases
First page:
375
Last page:
378
Number of Pages:
4