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Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study

Gill disorders have become more prevalent and widespread in finfish aquaculture in recent years. Their aetiology is often considered to be multifactorial. Effective diagnosis, control and prevention are hindered by the lack of standardised methodologies to characterise the aetiological agents, which...

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Autores principales: Fridman, Sophie, Tsairidou, Smaragda, Jayasuriya, Nilantha, Sobolewska, Halina, Hamilton, Alastair, Lobos, Carlos, Houston, Ross D., Rodger, Hamish, Bron, James, Herath, Tharangani
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706402/
https://www.ncbi.nlm.nih.gov/pubmed/34946205
http://dx.doi.org/10.3390/microorganisms9122605
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author Fridman, Sophie
Tsairidou, Smaragda
Jayasuriya, Nilantha
Sobolewska, Halina
Hamilton, Alastair
Lobos, Carlos
Houston, Ross D.
Rodger, Hamish
Bron, James
Herath, Tharangani
author_facet Fridman, Sophie
Tsairidou, Smaragda
Jayasuriya, Nilantha
Sobolewska, Halina
Hamilton, Alastair
Lobos, Carlos
Houston, Ross D.
Rodger, Hamish
Bron, James
Herath, Tharangani
author_sort Fridman, Sophie
collection PubMed
description Gill disorders have become more prevalent and widespread in finfish aquaculture in recent years. Their aetiology is often considered to be multifactorial. Effective diagnosis, control and prevention are hindered by the lack of standardised methodologies to characterise the aetiological agents, which produce an array of clinical and pathological presentations. The aim of this study was to define a novel gross pathological scoring system suitable for field-based macroscopic assessment of complex or multifactorial gill disease in farmed Atlantic salmon, using samples derived from a gill disease outbreak in Chile. Clinical assessment of gross gill morphology was performed, and gill samples were collected for qPCR and histology. A novel total gill scoring system was developed, which assesses gross pathological changes combining both the presumptive or healed amoebic gill disease (AGD) and the presence of other types of gill lesions. This scoring system offers a standardised approach to characterise the severe proliferative pathologies in affected gills. This total gill scoring system can substantially contribute to the development of robust mitigation strategies and could be used as an indicator trait for incorporating resistance to multifactorial gill disease into breeding goals.
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spelling pubmed-87064022021-12-25 Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study Fridman, Sophie Tsairidou, Smaragda Jayasuriya, Nilantha Sobolewska, Halina Hamilton, Alastair Lobos, Carlos Houston, Ross D. Rodger, Hamish Bron, James Herath, Tharangani Microorganisms Case Report Gill disorders have become more prevalent and widespread in finfish aquaculture in recent years. Their aetiology is often considered to be multifactorial. Effective diagnosis, control and prevention are hindered by the lack of standardised methodologies to characterise the aetiological agents, which produce an array of clinical and pathological presentations. The aim of this study was to define a novel gross pathological scoring system suitable for field-based macroscopic assessment of complex or multifactorial gill disease in farmed Atlantic salmon, using samples derived from a gill disease outbreak in Chile. Clinical assessment of gross gill morphology was performed, and gill samples were collected for qPCR and histology. A novel total gill scoring system was developed, which assesses gross pathological changes combining both the presumptive or healed amoebic gill disease (AGD) and the presence of other types of gill lesions. This scoring system offers a standardised approach to characterise the severe proliferative pathologies in affected gills. This total gill scoring system can substantially contribute to the development of robust mitigation strategies and could be used as an indicator trait for incorporating resistance to multifactorial gill disease into breeding goals. MDPI 2021-12-16 /pmc/articles/PMC8706402/ /pubmed/34946205 http://dx.doi.org/10.3390/microorganisms9122605 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Case Report
Fridman, Sophie
Tsairidou, Smaragda
Jayasuriya, Nilantha
Sobolewska, Halina
Hamilton, Alastair
Lobos, Carlos
Houston, Ross D.
Rodger, Hamish
Bron, James
Herath, Tharangani
Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study
title Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study
title_full Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study
title_fullStr Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study
title_full_unstemmed Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study
title_short Assessment of Marine Gill Disease in Farmed Atlantic Salmon (Salmo salar) in Chile Using a Novel Total Gross Gill Scoring System: A Case Study
title_sort assessment of marine gill disease in farmed atlantic salmon (salmo salar) in chile using a novel total gross gill scoring system: a case study
topic Case Report
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8706402/
https://www.ncbi.nlm.nih.gov/pubmed/34946205
http://dx.doi.org/10.3390/microorganisms9122605
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