A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada
Abstract. Post‐spawning mortalities of 2‐ to 3‐year old female rainbow trout, Salmo gairdneri Richardson, at a Newfoundland hatchery were studied. The fish were found to have a mixed bacterial infection involving primarily a Lactobacillus sp. (a Gram‐positive, chain‐forming coccobacillus) and to a l...
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1982
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crwiley:10.1111/j.1365-2761.1982.tb00507.x 2024-06-02T08:10:40+00:00 A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada CONE, D. K. 1982 http://dx.doi.org/10.1111/j.1365-2761.1982.tb00507.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.1982.tb00507.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.1982.tb00507.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Diseases volume 5, issue 6, page 479-485 ISSN 0140-7775 1365-2761 journal-article 1982 crwiley https://doi.org/10.1111/j.1365-2761.1982.tb00507.x 2024-05-03T10:37:19Z Abstract. Post‐spawning mortalities of 2‐ to 3‐year old female rainbow trout, Salmo gairdneri Richardson, at a Newfoundland hatchery were studied. The fish were found to have a mixed bacterial infection involving primarily a Lactobacillus sp. (a Gram‐positive, chain‐forming coccobacillus) and to a lesser degree Enterobacteriaceae, Aeromonas hydrophila and Pseudomonas fluorescens. The bacteria were isolated from the visceral organs, kidney, and ascitic fluid present in the coelomic cavity. The fish had extensive degeneration and necrosis of the liver, spleen and kidney, and sloughing of intestinal epithelium, but whether these were caused directly by the bacterial infection was not established because the fish appeared to have received substantial stress from the mechanical stripping and from the retention of dead, unshed eggs in the coelomic cavity. Tissue sections suggested that substantial growth of the Lactobacillus sp. was occurring within these unshed eggs. The present study describes this unusual observation and compares the Lactobacillus sp. to two other Lactobacillus isolates from cultured trout. Article in Journal/Newspaper Newfoundland Wiley Online Library Canada Journal of Fish Diseases 5 6 479 485 |
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Open Polar |
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Wiley Online Library |
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language |
English |
description |
Abstract. Post‐spawning mortalities of 2‐ to 3‐year old female rainbow trout, Salmo gairdneri Richardson, at a Newfoundland hatchery were studied. The fish were found to have a mixed bacterial infection involving primarily a Lactobacillus sp. (a Gram‐positive, chain‐forming coccobacillus) and to a lesser degree Enterobacteriaceae, Aeromonas hydrophila and Pseudomonas fluorescens. The bacteria were isolated from the visceral organs, kidney, and ascitic fluid present in the coelomic cavity. The fish had extensive degeneration and necrosis of the liver, spleen and kidney, and sloughing of intestinal epithelium, but whether these were caused directly by the bacterial infection was not established because the fish appeared to have received substantial stress from the mechanical stripping and from the retention of dead, unshed eggs in the coelomic cavity. Tissue sections suggested that substantial growth of the Lactobacillus sp. was occurring within these unshed eggs. The present study describes this unusual observation and compares the Lactobacillus sp. to two other Lactobacillus isolates from cultured trout. |
format |
Article in Journal/Newspaper |
author |
CONE, D. K. |
spellingShingle |
CONE, D. K. A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada |
author_facet |
CONE, D. K. |
author_sort |
CONE, D. K. |
title |
A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada |
title_short |
A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada |
title_full |
A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada |
title_fullStr |
A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada |
title_full_unstemmed |
A Lactobacillus sp. from diseased female rainbow trout, Salmo gairdneri Richardson, in Newfoundland, Canada |
title_sort |
lactobacillus sp. from diseased female rainbow trout, salmo gairdneri richardson, in newfoundland, canada |
publisher |
Wiley |
publishDate |
1982 |
url |
http://dx.doi.org/10.1111/j.1365-2761.1982.tb00507.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1365-2761.1982.tb00507.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1365-2761.1982.tb00507.x |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_source |
Journal of Fish Diseases volume 5, issue 6, page 479-485 ISSN 0140-7775 1365-2761 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1365-2761.1982.tb00507.x |
container_title |
Journal of Fish Diseases |
container_volume |
5 |
container_issue |
6 |
container_start_page |
479 |
op_container_end_page |
485 |
_version_ |
1800756576773996544 |