Effectiveness of commercial freshwater bathing as a treatment against amoebic gill disease in Atlantic salmon
By H. J. Parsons, B. Nowak, D. Fisk, M. Powell. 2001
99 citations recorded by the source corpus.
Abstract Amoebic gill disease (AGD) is the most serious health problem in Atlantic salmon culture in Tasmania, Australia. This disease is caused by an amoeboid protozoan, Paramoeba pemaquidensis and has resulted in seacage mortalities as high as 50%. Current treatment involves fish being bathed in freshwater for periods of 2–3 h. The aim of this project was to determine the effectiveness of commercial freshwater bathing. Gill samples were collected from Atlantic salmon before and after routine freshwater bathing. Each fish was weighed, measured (fork length), gross AGD score determined, gill smears stained with “Diff Quick” and trypan blue and gill arches examined using routine histology. Freshwater bathing significantly reduced the prevalence of characteristic mucoid patches on the gills, presence of paramoebae on gill smears and the number of paramoebae per lesion in histological sections (P
Subfields: Ecology, Health, Toxicology and Mutagenesis, Immunology
View Paper: https://www.semanticscholar.org/paper/75698b3b13a0dd0d0a61559c89fda0efc448bcca
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Citations in the corpus
- Welfare Indicators for farmed Atlantic salmon: Tools for assessing fish welfare (2018, background): “If fish held in snorkel cages were to be infected with AGD (Neoparamoeba perurans), the snorkels may have to be removed to allow fish to be bathed with freshwater or hydrogen peroxide (that are currently used to treat AGD outbreaks) [102, 129, 130, 131, 132].”
- Freshwater treatment of amoebic gill disease and sea-lice in seawater salmon production: Considerations of water chemistry and fish welfare in Norway (2015, background): “Subsequently, the efficacy of such treatments was characterized (Parsons et al., 2001a and b) and a demonstrated positive physiological effect on the fish shown (Powell et al., 2001).”