Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência Rural |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701233 |
Resumo: | ABSTRACT: The aim of this study was to evaluate the histological changes in the liver of thirty-five Gymnotusspp. parasitized by endohelminths collected between April 2012 to October 2013 in commercial bait fish farming of Pantanal basin. Histological cuts of 7µm were stained with hematoxylin-eosin for parasites research and liver changes and have also been submitted to the Perls histochemical method for evaluation of hemosiderosis (Fe+++) based on the incidence degree and severity of change (Grade I, II and III) and tests for the presence of central melanomacrophages. Parasites identified were: Brevimulticaecumsp. with a prevalence of 22,9%, Eustrongylidessp 17,1%, Contracaecumtype I 68,7%, Contracaecumtype II 5,7%, Contracaecumtype III 5,7% and larvae of Anisakidae11,4%. Histological analysis showed intense disorganization of hepatic parenchyma with degenerate hepatocytes due to high parasitic infection, changes that can be deleterious and compromise the organism functioning, being harmful to the health of evaluated animals. Also evidencing normal tissue interleaved with different stages of Fe+++ deposit in grades II and III, injuring or destroing the cell. Histopathological changes in the tuvira's liver suggested a chronic response and the development of a balance relation between tuvira and parasitism by endohelminth identified in this study. There are also a testimony to the health condition of commercial bait fish farming on current ecosystem conditions. |
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Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodeshepatic histopathologyparasitologycommercial bait fish farmingAnisakidae GymnotussppABSTRACT: The aim of this study was to evaluate the histological changes in the liver of thirty-five Gymnotusspp. parasitized by endohelminths collected between April 2012 to October 2013 in commercial bait fish farming of Pantanal basin. Histological cuts of 7µm were stained with hematoxylin-eosin for parasites research and liver changes and have also been submitted to the Perls histochemical method for evaluation of hemosiderosis (Fe+++) based on the incidence degree and severity of change (Grade I, II and III) and tests for the presence of central melanomacrophages. Parasites identified were: Brevimulticaecumsp. with a prevalence of 22,9%, Eustrongylidessp 17,1%, Contracaecumtype I 68,7%, Contracaecumtype II 5,7%, Contracaecumtype III 5,7% and larvae of Anisakidae11,4%. Histological analysis showed intense disorganization of hepatic parenchyma with degenerate hepatocytes due to high parasitic infection, changes that can be deleterious and compromise the organism functioning, being harmful to the health of evaluated animals. Also evidencing normal tissue interleaved with different stages of Fe+++ deposit in grades II and III, injuring or destroing the cell. Histopathological changes in the tuvira's liver suggested a chronic response and the development of a balance relation between tuvira and parasitism by endohelminth identified in this study. There are also a testimony to the health condition of commercial bait fish farming on current ecosystem conditions.Universidade Federal de Santa Maria2016-07-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701233Ciência Rural v.46 n.7 2016reponame:Ciência Ruralinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSM10.1590/0103-8478cr20150881info:eu-repo/semantics/openAccessVentura,Arlene SobrinhoIshikawa,Márcia MayumiGabriel,Andrea Maria de AraújoSilbiger,Helcy Lylian NogueiraCavichiolo,FabianaTakemoto,Ricardo Massatoeng2016-05-03T00:00:00ZRevista |
dc.title.none.fl_str_mv |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
title |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
spellingShingle |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes Ventura,Arlene Sobrinho hepatic histopathology parasitology commercial bait fish farming Anisakidae Gymnotusspp |
title_short |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
title_full |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
title_fullStr |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
title_full_unstemmed |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
title_sort |
Histopathology from liver of tuvira ( Gymnotus spp.) parasitized by larvae of nematodes |
author |
Ventura,Arlene Sobrinho |
author_facet |
Ventura,Arlene Sobrinho Ishikawa,Márcia Mayumi Gabriel,Andrea Maria de Araújo Silbiger,Helcy Lylian Nogueira Cavichiolo,Fabiana Takemoto,Ricardo Massato |
author_role |
author |
author2 |
Ishikawa,Márcia Mayumi Gabriel,Andrea Maria de Araújo Silbiger,Helcy Lylian Nogueira Cavichiolo,Fabiana Takemoto,Ricardo Massato |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Ventura,Arlene Sobrinho Ishikawa,Márcia Mayumi Gabriel,Andrea Maria de Araújo Silbiger,Helcy Lylian Nogueira Cavichiolo,Fabiana Takemoto,Ricardo Massato |
dc.subject.por.fl_str_mv |
hepatic histopathology parasitology commercial bait fish farming Anisakidae Gymnotusspp |
topic |
hepatic histopathology parasitology commercial bait fish farming Anisakidae Gymnotusspp |
description |
ABSTRACT: The aim of this study was to evaluate the histological changes in the liver of thirty-five Gymnotusspp. parasitized by endohelminths collected between April 2012 to October 2013 in commercial bait fish farming of Pantanal basin. Histological cuts of 7µm were stained with hematoxylin-eosin for parasites research and liver changes and have also been submitted to the Perls histochemical method for evaluation of hemosiderosis (Fe+++) based on the incidence degree and severity of change (Grade I, II and III) and tests for the presence of central melanomacrophages. Parasites identified were: Brevimulticaecumsp. with a prevalence of 22,9%, Eustrongylidessp 17,1%, Contracaecumtype I 68,7%, Contracaecumtype II 5,7%, Contracaecumtype III 5,7% and larvae of Anisakidae11,4%. Histological analysis showed intense disorganization of hepatic parenchyma with degenerate hepatocytes due to high parasitic infection, changes that can be deleterious and compromise the organism functioning, being harmful to the health of evaluated animals. Also evidencing normal tissue interleaved with different stages of Fe+++ deposit in grades II and III, injuring or destroing the cell. Histopathological changes in the tuvira's liver suggested a chronic response and the development of a balance relation between tuvira and parasitism by endohelminth identified in this study. There are also a testimony to the health condition of commercial bait fish farming on current ecosystem conditions. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-07-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701233 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701233 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/0103-8478cr20150881 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
Ciência Rural v.46 n.7 2016 reponame:Ciência Rural instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Ciência Rural |
collection |
Ciência Rural |
repository.name.fl_str_mv |
|
repository.mail.fl_str_mv |
|
_version_ |
1749140550422888448 |