Some aspects of the interrelationship of bacterial kidney disease infection and sodium pentachlorophenate exposure in juvenile chinook salmon (Oncorhynchus tshawytscha) ...

• Main Author: Iwama, George Katsushi
• Format: Text
• Language: English
• Published: University of British Columbia 2010
• Subjects: Pink salmon
• Online Access: https://dx.doi.org/10.14288/1.0093979; https://doi.library.ubc.ca/10.14288/1.0093979

The interrelationship of bacterial kidney disease, a chronic disease of cultured salmonids, and an environmental toxicant, sodium pentachlorophenate, in juvenile chinook salmon, over time, was studied. This was carried out by monitoring various haematological parameters in the fish exposed to the two factors, singularly and in combination. An evaluation of these parameters as useful indices of stressful states imposed by the treatment was also attempted. Furthermore, external and internal physical examinations, gram stained kidney smears and the occurrence of mortalities supplemented the blood changes in evaluating the response of the fish to these factors. Approximately 41 x 10⁶ viable kidney disease bacteria, isolated from moribund adult pink salmon, were injected intraperitoneally into the fish after anaesthetization with neutralized tricane methanesulphonate. Control fish were similarly sham injected. All injections were carried out on the same day. Both experimental and control groups of fish were then ...