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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...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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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. |
format | Online Article Text |
id | pubmed-8706402 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
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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