Evaluation of four methods to establish asymptomatic carriers of Aeromonas salmonicida in juvenile spring chinook salmon, Oncorhynchus tshawytscha (Walbaum) |
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| Authors: | N M MARKWARDT G W KLONTZ |
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| Institution: | Department of Fish and Wildlife Resources, College of Forestry, Wildlife and Range Sciences, University of Idaho, Moscow, Idaho, USA |
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| Abstract: | Abstract. This study evaluated four methods to establish asymptomatic carriers of Aeromonas salmonicida. Exposure of chinook salmon, Oncorhynchus tshawytscha (Walbaum), to A. salmonicida by gastric intubation resulted in a carrier prevalence of 65%. This prevalence was significantly higher than prevalences of 40, 20 and 10% after exposure respectively to broth culture bath, ingestion of broth coated feed, and exposure to intraperitoneally infected fish. |
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