Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada
Abstract Bacterial kidney disease ( BKD ) is considered an important cause of loss in salmon aquaculture in Atlantic Canada. Causative agent of BKD is the Gram‐positive bacteria Renibacterium salmoninarum . Infected salmon are often asymptomatic (subclinical infection), and the disease is considered...
Published in: | Journal of Fish Diseases |
---|---|
Main Authors: | , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2016
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1111/jfd.12521 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12521 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12521 |
id |
crwiley:10.1111/jfd.12521 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1111/jfd.12521 2024-09-09T19:30:45+00:00 Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada Boerlage, A S Stryhn, H Sanchez, J Hammell, K L Canada Excellence Research Chairs Program and Innovation PEI 2016 http://dx.doi.org/10.1111/jfd.12521 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12521 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12521 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 40, issue 3, page 395-409 ISSN 0140-7775 1365-2761 journal-article 2016 crwiley https://doi.org/10.1111/jfd.12521 2024-07-09T04:15:02Z Abstract Bacterial kidney disease ( BKD ) is considered an important cause of loss in salmon aquaculture in Atlantic Canada. Causative agent of BKD is the Gram‐positive bacteria Renibacterium salmoninarum . Infected salmon are often asymptomatic (subclinical infection), and the disease is considered chronic. One of the challenges in quantifying information from farm production and health records is the application of a standardized case definition. Case definitions for farm‐level and cage‐level clinical and subclinical BKD were developed using retrospective longitudinal data from aquaculture practices in New Brunswick, Canada, combining (i) industry records of weekly production data including mortalities, (ii) field observations for BKD using reports of veterinarians and/or fish health technicians, (iii) diagnostic submissions and test results and (iv) treatments used to control BKD . Case definitions were evaluated using veterinarians’ expert judgements as reference standard. Eighty‐nine and 66% of sites and fish groups, respectively, were associated with BKD at least once. For BKD present (subclinical or clinical), sensitivity and specificity of the case definition were 75–100% varying between event, fish group, site cycle and level (site pen). For clinical BKD , sensitivities were 29–64% and specificities 91–100%. Industry data can be used to develop sensitive case definitions. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Canada Journal of Fish Diseases 40 3 395 409 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract Bacterial kidney disease ( BKD ) is considered an important cause of loss in salmon aquaculture in Atlantic Canada. Causative agent of BKD is the Gram‐positive bacteria Renibacterium salmoninarum . Infected salmon are often asymptomatic (subclinical infection), and the disease is considered chronic. One of the challenges in quantifying information from farm production and health records is the application of a standardized case definition. Case definitions for farm‐level and cage‐level clinical and subclinical BKD were developed using retrospective longitudinal data from aquaculture practices in New Brunswick, Canada, combining (i) industry records of weekly production data including mortalities, (ii) field observations for BKD using reports of veterinarians and/or fish health technicians, (iii) diagnostic submissions and test results and (iv) treatments used to control BKD . Case definitions were evaluated using veterinarians’ expert judgements as reference standard. Eighty‐nine and 66% of sites and fish groups, respectively, were associated with BKD at least once. For BKD present (subclinical or clinical), sensitivity and specificity of the case definition were 75–100% varying between event, fish group, site cycle and level (site pen). For clinical BKD , sensitivities were 29–64% and specificities 91–100%. Industry data can be used to develop sensitive case definitions. |
author2 |
Canada Excellence Research Chairs Program and Innovation PEI |
format |
Article in Journal/Newspaper |
author |
Boerlage, A S Stryhn, H Sanchez, J Hammell, K L |
spellingShingle |
Boerlage, A S Stryhn, H Sanchez, J Hammell, K L Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada |
author_facet |
Boerlage, A S Stryhn, H Sanchez, J Hammell, K L |
author_sort |
Boerlage, A S |
title |
Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada |
title_short |
Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada |
title_full |
Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada |
title_fullStr |
Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada |
title_full_unstemmed |
Case definition for clinical and subclinical bacterial kidney disease (BKD) in Atlantic Salmon ( Salmo salar L.) in New Brunswick, Canada |
title_sort |
case definition for clinical and subclinical bacterial kidney disease (bkd) in atlantic salmon ( salmo salar l.) in new brunswick, canada |
publisher |
Wiley |
publishDate |
2016 |
url |
http://dx.doi.org/10.1111/jfd.12521 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fjfd.12521 https://onlinelibrary.wiley.com/doi/pdf/10.1111/jfd.12521 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Diseases volume 40, issue 3, page 395-409 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/jfd.12521 |
container_title |
Journal of Fish Diseases |
container_volume |
40 |
container_issue |
3 |
container_start_page |
395 |
op_container_end_page |
409 |
_version_ |
1809899734098247680 |