Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome

Autores
Pasteris, Sergio Enrique; Bühler, M. I.; Nader, Maria Elena Fatima
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Rana catesbeiana is one of the delicacies of international gastronomy. Farming operations often lead to an increased risk of diseases and mortality. The present work addresses microbiological and histological studies in R. catesbeiana with red-leg syndrome (RLS), infection that causes significant economic losses in hatcheries. Partial phenotypical identification demonstrated that the microbial populations isolated from the skin of fattening phase animals and freshwater samples during the autumn (June) are grouped into the following taxa: Lactobacillus spp, Pediococcus spp, Micrococcus spp, Enterococcus faecalis, Ent. faecium and Enterobacteriaceae (Enterobacter spp and Proteus vulgaris). Microbial infection on target organs (liver/spleen) and blood showed the presence of Pr. vulgaris, Staphylococcus aureus and Enterococcus strains. Histological studies of skin ulcerations showed epithelial necrosis, diskeratosis, apoptosis and espongiosis. No sporangia associated with chitridiomycosis were observed. The dermis presented oedema, dilated vascular light, fibrin-leucocytic exudates and distortion of serous and granular glands. The liver showed centrolobullar necrosis and a decrease in melanin containing cells. The spleen presented wide areas of septic infarct. This paper reports the presence of lactic acid bacteria and other genera in the skin and freshwater from farmed R. catesbeiana during the autumn and a correlation between microbial infection and structural changes in tissues of bullfrogs with RLS. The severity of the structural changes is related to the level of microbial infection in the target organs and could be sustained by the isolation of Pr. vulgaris and other pathogens.
Fil: Pasteris, Sergio Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Bühler, M. I.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Nader, Maria Elena Fatima. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Centro de Referencia Para Lactobacilos; Argentina
Materia
Histological Evaluations
Rana Catesbeiana
Red-Leg Syndrome
Skin Microbial Population
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/36580
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/36580
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndromePasteris, Sergio EnriqueBühler, M. I.Nader, Maria Elena FatimaHistological EvaluationsRana CatesbeianaRed-Leg SyndromeSkin Microbial Populationhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Rana catesbeiana is one of the delicacies of international gastronomy. Farming operations often lead to an increased risk of diseases and mortality. The present work addresses microbiological and histological studies in R. catesbeiana with red-leg syndrome (RLS), infection that causes significant economic losses in hatcheries. Partial phenotypical identification demonstrated that the microbial populations isolated from the skin of fattening phase animals and freshwater samples during the autumn (June) are grouped into the following taxa: Lactobacillus spp, Pediococcus spp, Micrococcus spp, Enterococcus faecalis, Ent. faecium and Enterobacteriaceae (Enterobacter spp and Proteus vulgaris). Microbial infection on target organs (liver/spleen) and blood showed the presence of Pr. vulgaris, Staphylococcus aureus and Enterococcus strains. Histological studies of skin ulcerations showed epithelial necrosis, diskeratosis, apoptosis and espongiosis. No sporangia associated with chitridiomycosis were observed. The dermis presented oedema, dilated vascular light, fibrin-leucocytic exudates and distortion of serous and granular glands. The liver showed centrolobullar necrosis and a decrease in melanin containing cells. The spleen presented wide areas of septic infarct. This paper reports the presence of lactic acid bacteria and other genera in the skin and freshwater from farmed R. catesbeiana during the autumn and a correlation between microbial infection and structural changes in tissues of bullfrogs with RLS. The severity of the structural changes is related to the level of microbial infection in the target organs and could be sustained by the isolation of Pr. vulgaris and other pathogens.Fil: Pasteris, Sergio Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Bühler, M. I.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; ArgentinaFil: Nader, Maria Elena Fatima. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Centro de Referencia Para Lactobacilos; ArgentinaElsevier2006-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/36580Pasteris, Sergio Enrique; Bühler, M. I.; Nader, Maria Elena Fatima; Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome; Elsevier; Aquaculture; 251; 1; 1-2006; 11-180044-8486CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2005.05.007info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044848605003431info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:02:13Zoai:ri.conicet.gov.ar:11336/36580instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:02:13.389CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
title Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
spellingShingle Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
Pasteris, Sergio Enrique
Histological Evaluations
Rana Catesbeiana
Red-Leg Syndrome
Skin Microbial Population
title_short Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
title_full Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
title_fullStr Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
title_full_unstemmed Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
title_sort Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome
dc.creator.none.fl_str_mv Pasteris, Sergio Enrique
Bühler, M. I.
Nader, Maria Elena Fatima
author Pasteris, Sergio Enrique
author_facet Pasteris, Sergio Enrique
Bühler, M. I.
Nader, Maria Elena Fatima
author_role author
author2 Bühler, M. I.
Nader, Maria Elena Fatima
author2_role author
author
dc.subject.none.fl_str_mv Histological Evaluations
Rana Catesbeiana
Red-Leg Syndrome
Skin Microbial Population
topic Histological Evaluations
Rana Catesbeiana
Red-Leg Syndrome
Skin Microbial Population
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Rana catesbeiana is one of the delicacies of international gastronomy. Farming operations often lead to an increased risk of diseases and mortality. The present work addresses microbiological and histological studies in R. catesbeiana with red-leg syndrome (RLS), infection that causes significant economic losses in hatcheries. Partial phenotypical identification demonstrated that the microbial populations isolated from the skin of fattening phase animals and freshwater samples during the autumn (June) are grouped into the following taxa: Lactobacillus spp, Pediococcus spp, Micrococcus spp, Enterococcus faecalis, Ent. faecium and Enterobacteriaceae (Enterobacter spp and Proteus vulgaris). Microbial infection on target organs (liver/spleen) and blood showed the presence of Pr. vulgaris, Staphylococcus aureus and Enterococcus strains. Histological studies of skin ulcerations showed epithelial necrosis, diskeratosis, apoptosis and espongiosis. No sporangia associated with chitridiomycosis were observed. The dermis presented oedema, dilated vascular light, fibrin-leucocytic exudates and distortion of serous and granular glands. The liver showed centrolobullar necrosis and a decrease in melanin containing cells. The spleen presented wide areas of septic infarct. This paper reports the presence of lactic acid bacteria and other genera in the skin and freshwater from farmed R. catesbeiana during the autumn and a correlation between microbial infection and structural changes in tissues of bullfrogs with RLS. The severity of the structural changes is related to the level of microbial infection in the target organs and could be sustained by the isolation of Pr. vulgaris and other pathogens.
Fil: Pasteris, Sergio Enrique. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Bühler, M. I.. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucumán. Instituto Superior de Investigaciones Biológicas. Universidad Nacional de Tucumán. Instituto Superior de Investigaciones Biológicas; Argentina
Fil: Nader, Maria Elena Fatima. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Tucuman. Centro de Referencia Para Lactobacilos; Argentina
description Rana catesbeiana is one of the delicacies of international gastronomy. Farming operations often lead to an increased risk of diseases and mortality. The present work addresses microbiological and histological studies in R. catesbeiana with red-leg syndrome (RLS), infection that causes significant economic losses in hatcheries. Partial phenotypical identification demonstrated that the microbial populations isolated from the skin of fattening phase animals and freshwater samples during the autumn (June) are grouped into the following taxa: Lactobacillus spp, Pediococcus spp, Micrococcus spp, Enterococcus faecalis, Ent. faecium and Enterobacteriaceae (Enterobacter spp and Proteus vulgaris). Microbial infection on target organs (liver/spleen) and blood showed the presence of Pr. vulgaris, Staphylococcus aureus and Enterococcus strains. Histological studies of skin ulcerations showed epithelial necrosis, diskeratosis, apoptosis and espongiosis. No sporangia associated with chitridiomycosis were observed. The dermis presented oedema, dilated vascular light, fibrin-leucocytic exudates and distortion of serous and granular glands. The liver showed centrolobullar necrosis and a decrease in melanin containing cells. The spleen presented wide areas of septic infarct. This paper reports the presence of lactic acid bacteria and other genera in the skin and freshwater from farmed R. catesbeiana during the autumn and a correlation between microbial infection and structural changes in tissues of bullfrogs with RLS. The severity of the structural changes is related to the level of microbial infection in the target organs and could be sustained by the isolation of Pr. vulgaris and other pathogens.
publishDate 2006
dc.date.none.fl_str_mv 2006-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/36580
Pasteris, Sergio Enrique; Bühler, M. I.; Nader, Maria Elena Fatima; Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome; Elsevier; Aquaculture; 251; 1; 1-2006; 11-18
0044-8486
CONICET Digital
CONICET
url http://hdl.handle.net/11336/36580
identifier_str_mv Pasteris, Sergio Enrique; Bühler, M. I.; Nader, Maria Elena Fatima; Microbiological and histological studies of farmed-bullfrog (Rana catesbeiana) tissues displaying red-leg syndrome; Elsevier; Aquaculture; 251; 1; 1-2006; 11-18
0044-8486
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2005.05.007
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0044848605003431
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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