Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis
Three groups of Atlantic salmon (Salmo salar) naturally infected with Piscirickettsia salmonis were analyzed by necropsy and histopathology. Fish were collected from saltwater farmings in the Southern Chile. In group 1 fish did not show clinical signs of the disease. In group 2, fish showed mild sig...
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Universidad de Chile. Facultad de Ciencias Veterinarias y Pecuarias
1995
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ftunivchileojs:oai:ojs.pkp.sfu.ca:article/10440 2023-05-15T15:32:19+02:00 Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis Larenas H., Julio Hidalgo, Loreto V. Garcés A., Hernán Fryer, John L. Smith S., Pedro 1995-01-01 html https://revistas.uchile.cl/index.php/ACV/article/view/10440 spa spa Universidad de Chile. Facultad de Ciencias Veterinarias y Pecuarias https://revistas.uchile.cl/index.php/ACV/article/view/10440/10496 https://revistas.uchile.cl/index.php/ACV/article/view/10440 Avances en Ciencias Veterinarias; Vol. 10 Núm. 1 (1995): Enero-Junio 0719-5273 0716-260X Salmon disease rickettsia histopathology immune depression enfermedades en salmones histopatología depresión inmune info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 1995 ftunivchileojs 2022-05-26T08:00:53Z Three groups of Atlantic salmon (Salmo salar) naturally infected with Piscirickettsia salmonis were analyzed by necropsy and histopathology. Fish were collected from saltwater farmings in the Southern Chile. In group 1 fish did not show clinical signs of the disease. In group 2, fish showed mild signs of piscirickettsiosis and the group 3 were severely affected and most of them were moribund. Lesions were more severe and extensive in the group 3, but necrosis and endothelial lesion were present in a variety of tissues in all the groups. The main lesions were necrosis of hematopoietic tissue in spleen and kidney. Inflammatory response was scarce specially in group 3. Necrosis of neurons and endothelial cells of brain was also observed and P. salmonis was present in the cytoplasm of some neurons. The lesions in the lymphoid tissue of spleen and kidney and the depletion of immunocompetent cells could predispose the fish to secundary infection by other opportunistic or pathogenic agents. - Article in Journal/Newspaper Atlantic salmon Salmo salar Portal de Revistas Académicas de la Universidad de Chile |
institution |
Open Polar |
collection |
Portal de Revistas Académicas de la Universidad de Chile |
op_collection_id |
ftunivchileojs |
language |
Spanish |
topic |
Salmon disease rickettsia histopathology immune depression enfermedades en salmones histopatología depresión inmune |
spellingShingle |
Salmon disease rickettsia histopathology immune depression enfermedades en salmones histopatología depresión inmune Larenas H., Julio Hidalgo, Loreto V. Garcés A., Hernán Fryer, John L. Smith S., Pedro Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis |
topic_facet |
Salmon disease rickettsia histopathology immune depression enfermedades en salmones histopatología depresión inmune |
description |
Three groups of Atlantic salmon (Salmo salar) naturally infected with Piscirickettsia salmonis were analyzed by necropsy and histopathology. Fish were collected from saltwater farmings in the Southern Chile. In group 1 fish did not show clinical signs of the disease. In group 2, fish showed mild signs of piscirickettsiosis and the group 3 were severely affected and most of them were moribund. Lesions were more severe and extensive in the group 3, but necrosis and endothelial lesion were present in a variety of tissues in all the groups. The main lesions were necrosis of hematopoietic tissue in spleen and kidney. Inflammatory response was scarce specially in group 3. Necrosis of neurons and endothelial cells of brain was also observed and P. salmonis was present in the cytoplasm of some neurons. The lesions in the lymphoid tissue of spleen and kidney and the depletion of immunocompetent cells could predispose the fish to secundary infection by other opportunistic or pathogenic agents. - |
format |
Article in Journal/Newspaper |
author |
Larenas H., Julio Hidalgo, Loreto V. Garcés A., Hernán Fryer, John L. Smith S., Pedro |
author_facet |
Larenas H., Julio Hidalgo, Loreto V. Garcés A., Hernán Fryer, John L. Smith S., Pedro |
author_sort |
Larenas H., Julio |
title |
Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis |
title_short |
Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis |
title_full |
Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis |
title_fullStr |
Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis |
title_full_unstemmed |
Piscirickettsiosis: lesiones en salmón del atlántico (Salmo salar) infectados naturalmente con Piscirickettsia salmonis |
title_sort |
piscirickettsiosis: lesiones en salmón del atlántico (salmo salar) infectados naturalmente con piscirickettsia salmonis |
publisher |
Universidad de Chile. Facultad de Ciencias Veterinarias y Pecuarias |
publishDate |
1995 |
url |
https://revistas.uchile.cl/index.php/ACV/article/view/10440 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Avances en Ciencias Veterinarias; Vol. 10 Núm. 1 (1995): Enero-Junio 0719-5273 0716-260X |
op_relation |
https://revistas.uchile.cl/index.php/ACV/article/view/10440/10496 https://revistas.uchile.cl/index.php/ACV/article/view/10440 |
_version_ |
1766362838215950336 |