Prevalence of kudoa thyrsited in Pacific Hake (Merluccius productus) and thermal resistance of Kudoa thyrsites and Kudoa paniformis spores ...
Experiments were conducted to determine the potential of Pacific hake (Merluccius productus) fish meal to act as a vector of Kudoa thyrsites transmission to farmed Atlantic salmon (Salmo salar). This was done by determining the prevalence and intensity of K. thyrsites in Pacific hake destined for fi...
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| Format: | Text |
| Language: | English |
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University of British Columbia
2009
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| Online Access: | https://dx.doi.org/10.14288/1.0091433 https://doi.library.ubc.ca/10.14288/1.0091433 |
| Summary: | Experiments were conducted to determine the potential of Pacific hake (Merluccius productus) fish meal to act as a vector of Kudoa thyrsites transmission to farmed Atlantic salmon (Salmo salar). This was done by determining the prevalence and intensity of K. thyrsites in Pacific hake destined for fish meal processing, developing a viability test for K. thyrsites, and determining the thermal resistance of K. thyrsites. Thermal resistance experiments were also performed for K. paniformis. Pacific hake samples were collected from the rendering plant in 2001 and 2002. The prevalence of K. thyrsites in the 2001 samples was 78.0%. Of these infections, 36.4% were light and 63.6% were moderate. The 2002 samples had a K. thyrsites prevalence of 80.1% infection, with 24.3% being light and 75.7% being moderate. Dyes used to test viability of other myxosporean parasites were examined for their suitability for K. thyrsites and K. paniformis. Methylene blue, fluorescein diacetate, and propidium iodide were suitable as a ... |
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