Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout.
BACKGROUND: Furunculosis, caused by Aeromonas salmonicida, continues to be a major health problem for the growing salmonid aquaculture. Despite effective vaccination programs regular outbreaks occur at the fish farms calling for repeated antibiotic treatment. We hypothesized that a difference in nat...
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ftdoajarticles:oai:doaj.org/article:50b286d56e3a47e1baa8ed3d2787b647 2023-05-15T18:09:54+02:00 Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. Lars Holten-Andersen Inger Dalsgaard Kurt Buchmann 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0029571 https://doaj.org/article/50b286d56e3a47e1baa8ed3d2787b647 EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3262780?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0029571 https://doaj.org/article/50b286d56e3a47e1baa8ed3d2787b647 PLoS ONE, Vol 7, Iss 1, p e29571 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0029571 2022-12-31T06:05:16Z BACKGROUND: Furunculosis, caused by Aeromonas salmonicida, continues to be a major health problem for the growing salmonid aquaculture. Despite effective vaccination programs regular outbreaks occur at the fish farms calling for repeated antibiotic treatment. We hypothesized that a difference in natural susceptibility to this disease might exist between Baltic salmon and the widely used rainbow trout. STUDY DESIGN: A cohabitation challenge model was applied to investigate the relative susceptibility to infection with A. salmonicida in rainbow trout and Baltic salmon. The course of infection was monitored daily over a 30-day period post challenge and the results were summarized in mortality curves. RESULTS: A. salmonicida was recovered from mortalities during the entire test period. At day 30 the survival was 6.2% and 34.0% for rainbow trout and Baltic salmon, respectively. Significant differences in susceptibility to A. salmonicida were demonstrated between the two salmonids and hazard ratio estimation between rainbow trout and Baltic salmon showed a 3.36 higher risk of dying from the infection in the former. CONCLUSION: The finding that Baltic salmon carries a high level of natural resistance to furunculosis might raise new possibilities for salmonid aquaculture in terms of minimizing disease outbreaks and the use of antibiotics. Article in Journal/Newspaper Salmo salar Directory of Open Access Journals: DOAJ Articles PLoS ONE 7 1 e29571 |
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Medicine R Science Q |
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Medicine R Science Q Lars Holten-Andersen Inger Dalsgaard Kurt Buchmann Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. |
topic_facet |
Medicine R Science Q |
description |
BACKGROUND: Furunculosis, caused by Aeromonas salmonicida, continues to be a major health problem for the growing salmonid aquaculture. Despite effective vaccination programs regular outbreaks occur at the fish farms calling for repeated antibiotic treatment. We hypothesized that a difference in natural susceptibility to this disease might exist between Baltic salmon and the widely used rainbow trout. STUDY DESIGN: A cohabitation challenge model was applied to investigate the relative susceptibility to infection with A. salmonicida in rainbow trout and Baltic salmon. The course of infection was monitored daily over a 30-day period post challenge and the results were summarized in mortality curves. RESULTS: A. salmonicida was recovered from mortalities during the entire test period. At day 30 the survival was 6.2% and 34.0% for rainbow trout and Baltic salmon, respectively. Significant differences in susceptibility to A. salmonicida were demonstrated between the two salmonids and hazard ratio estimation between rainbow trout and Baltic salmon showed a 3.36 higher risk of dying from the infection in the former. CONCLUSION: The finding that Baltic salmon carries a high level of natural resistance to furunculosis might raise new possibilities for salmonid aquaculture in terms of minimizing disease outbreaks and the use of antibiotics. |
format |
Article in Journal/Newspaper |
author |
Lars Holten-Andersen Inger Dalsgaard Kurt Buchmann |
author_facet |
Lars Holten-Andersen Inger Dalsgaard Kurt Buchmann |
author_sort |
Lars Holten-Andersen |
title |
Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. |
title_short |
Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. |
title_full |
Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. |
title_fullStr |
Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. |
title_full_unstemmed |
Baltic salmon, Salmo salar, from Swedish river Lule älv is more resistant to furunculosis compared to rainbow trout. |
title_sort |
baltic salmon, salmo salar, from swedish river lule älv is more resistant to furunculosis compared to rainbow trout. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0029571 https://doaj.org/article/50b286d56e3a47e1baa8ed3d2787b647 |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
PLoS ONE, Vol 7, Iss 1, p e29571 (2012) |
op_relation |
http://europepmc.org/articles/PMC3262780?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0029571 https://doaj.org/article/50b286d56e3a47e1baa8ed3d2787b647 |
op_doi |
https://doi.org/10.1371/journal.pone.0029571 |
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PLoS ONE |
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7 |
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1 |
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e29571 |
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