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Experimental exposure to low concentrations of Neoparamoeba perurans induces amoebic gill disease in Atlantic salmon

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Bridle, AR ORCID: 0000-0002-5788-1297, Hill, T, Smith, A, Crosbie, P ORCID: 0000-0001-8856-1731 and Nowak, BF ORCID: 0000-0002-0347-643X 2021 , 'Experimental exposure to low concentrations of Neoparamoeba perurans induces amoebic gill disease in Atlantic salmon' , Journal of Fish Diseases , pp. 1-7 , doi: 10.1111/jfd.13363.

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Abstract

Amoebic gill disease (AGD) is a significant issue in Atlantic salmon mariculture. Research on the development of treatments or vaccines uses experimental challenges where salmon is exposed to amoebae concentrations ranging from 500 to 5,000/L. However, the water concentrations of N. perurans on affected salmon farms are much lower. The lowest concentration of N. perurans previously reported to cause AGD was 10/L. Here, we report that concentrations as low as 0.1/L of N. perurans can cause AGD. We propose that concentrations of N. perurans that reflect those measured on salmon farms should be used for future experimental challenges.

Item Type: Article
Authors/Creators:Bridle, AR and Hill, T and Smith, A and Crosbie, P and Nowak, BF
Keywords: amoebic gill disease, experimental challenge, risk prediction
Journal or Publication Title: Journal of Fish Diseases
Publisher: Blackwell Publishing Ltd
ISSN: 0140-7775
DOI / ID Number: 10.1111/jfd.13363
Copyright Information:

This is the peer reviewed version of the following article which has been published in final form at: https://doi.org/10.1111/jfd.13363 This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions."

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