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1 July 1990 EFFECTS OF ICHTHYOPHONUS HOFERI ON CONDITION INDICES AND BLOOD CHEMISTRY OF EXPERIMENTALLY INFECTED RAINBOW TROUT (ONCORHYNCHUS MYKISS)
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Abstract

Body condition, hepatosomatic index and blood chemistry of Oncorhynchus mykiss experimentally infected with a tissue dwelling fish pathogenic fungus, Ichthyophonus hoferi, were monitored over a 6 wk period. This was to determine whether the infection constituted a stress manifest by changes in the hypothalamic-pituitary interrenal axis, and especially plasma cortisol levels. Infection caused anaemia and leucopenia but did not change the condition, hepatosomatic indices, or plasma chloride, cholesterol, cortisol, creatinine, glucose, osmolarity, potassium, total protein, sodium and T4. It is suggested that increased cortisol levels may not be a normal component of the stress response of fish to disease caused by invasive infectious agents.

Thomas G. Rand and David K. Cone "EFFECTS OF ICHTHYOPHONUS HOFERI ON CONDITION INDICES AND BLOOD CHEMISTRY OF EXPERIMENTALLY INFECTED RAINBOW TROUT (ONCORHYNCHUS MYKISS)," Journal of Wildlife Diseases 26(3), 323-328, (1 July 1990). https://doi.org/10.7589/0090-3558-26.3.323
Received: 19 June 1989; Published: 1 July 1990
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