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Abstract
Renibacterium salmoninarum, the causative agent of salmonid bacterial kidney disease (BKD), is endemic in many wild trout species in northerly regions. The aim of the present study was to determine the optimal R. salmoninarum sampling/testing strategy for wild brown trout (Salmo trutta L.) populations in Iceland. Fish were netted in a lake and multiple organs—kidney, spleen, gills, oesophagus and mid-gut—were sampled and subjected to five detection tests i.e. culture, polyclonal enzyme-linked immunosorbent assay (pELISA) and three different PCR tests. The results showed that each fish had encountered R. salmoninarum but there were marked differences between results obtained depending on organ and test. The bacterium was not cultured from any kidney sample while all kidney samples were positive by pELISA. At least one organ from 92.9% of the fish tested positive by PCR. The results demonstrated that the choice of tissue and diagnostic method can dramatically influence the outcome of R. salmoninarum surveys.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Detecting Renibacterium salmoninarum in wild brown trout by use of multiple organ samples and diagnostic methods |
| Series title | Bulletin of the European Association of Fish Pathologists |
| Volume | 37 |
| Issue | 1 |
| Year Published | 2017 |
| Language | English |
| Publisher | European Association of Fish Pathologists |
| Contributing office(s) | Western Fisheries Research Center |
| Description | 12 p. |
| First page | 31 |
| Last page | 40 |
| Google Analytic Metrics | Metrics page |