Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)

Detalhes bibliográficos
Autor(a) principal: Vasconcelos, Simone Bertozi de Souza
Data de Publicação: 2001
Outros Autores: Bottino, José Américo, Guerra, José Luiz, Jerez, José Antonio
Tipo de documento: Artigo
Idioma: por
Título da fonte: Brazilian Journal of Veterinary Research and Animal Science
Texto Completo: https://www.revistas.usp.br/bjvras/article/view/5908
Resumo: This paper describes visceral lesions induced by inoculation of one-day-old broiler chicks with an avian reovirus strain (S-1133) by oral and foodpad routes. The bursa of Fabricius, intestine, liver, spleen and heart of five birds from inoculated and control groups were collected in the periods of 24, 48, 72 hours and at weekly intervals from 1 to 8 weeks post inoculation for histopathological examination. Interstitial myocarditis was observed 48 hours post inoculation, pericarditis and necrotic myocarditis were seen in the first week post inoculation. The pericardium presented lymphoid follicles at 2 weeks post inoculation and in the subsequent periods there was progressive fibrosis seen until 8 weeks post inoculation. In the liver, infiltration of heterophils and mononuclear cells was observed 72 hours post inoculation, followed by degeneration and necrosis of hepatocytes at one week post inoculation. Lymphoid follicles and heterophilic infiltration were seen from 2 to 8 weeks post inoculation. The spleen presented a progressive necrosis from 48 hours to one week post inoculation and at 2 weeks post inoculation hyperplasia lymphoid was observed in the splenic tissue. No lesions were seen in the other examinated organs. Visceral lesions were similar occurring simultaneously in both inoculated groups, nevertheless the lesions were more severe in the group inoculated via footpad.
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spelling Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)Lesões viscerais induzidas experimentalmente pela inoculação de uma amostra artrotrópica de reovírus em frangos de corte (Gallus gallus)ReoviridaeAves domésticasReoviridaeDomestic AvianThis paper describes visceral lesions induced by inoculation of one-day-old broiler chicks with an avian reovirus strain (S-1133) by oral and foodpad routes. The bursa of Fabricius, intestine, liver, spleen and heart of five birds from inoculated and control groups were collected in the periods of 24, 48, 72 hours and at weekly intervals from 1 to 8 weeks post inoculation for histopathological examination. Interstitial myocarditis was observed 48 hours post inoculation, pericarditis and necrotic myocarditis were seen in the first week post inoculation. The pericardium presented lymphoid follicles at 2 weeks post inoculation and in the subsequent periods there was progressive fibrosis seen until 8 weeks post inoculation. In the liver, infiltration of heterophils and mononuclear cells was observed 72 hours post inoculation, followed by degeneration and necrosis of hepatocytes at one week post inoculation. Lymphoid follicles and heterophilic infiltration were seen from 2 to 8 weeks post inoculation. The spleen presented a progressive necrosis from 48 hours to one week post inoculation and at 2 weeks post inoculation hyperplasia lymphoid was observed in the splenic tissue. No lesions were seen in the other examinated organs. Visceral lesions were similar occurring simultaneously in both inoculated groups, nevertheless the lesions were more severe in the group inoculated via footpad.Este trabalho descreve as lesões viscerais induzidas pela inoculação oral e podal de uma amostra artrotrópica de reovírus aviário (S-1133) em pintos de corte de um dia de idade. Realizou-se o exame histopatológico de fragmentos da Bursa de Fabricius, intestinos, fígado, baço e miocárdio utilizando-se cinco aves dos grupos inoculados e do grupo controle, nos períodos de 24, 48, 72 horas e semanalmente até a oitava semana após a inoculação. No miocárdio, observou-se miocardite intersticial 48 horas pós-inoculação, miocardite necrótica e pericardite na primeira semana após a inoculação. Houve no pericárdio, na segunda semana após a inoculação, a formação de folículos linfóides e seu espessamento fibroso em períodos subseqüentes até a oitava semana. No fígado, foi observado um infiltrado inflamatório misto 72 horas após a inoculação e degeneração vacuolar e necrose dos hepatócitos na primeira semana pós-inoculação. Observou-se, ainda, a presença de tecido linfóide ativo e de infiltrado heterofílico na segunda semana após a inoculação, persistindo até o final do experimento. Verificou-se necrose progressiva do tecido esplênico de 48 horas até a primeira semana após a inoculação e a partir da segunda semana observou-se hiperplasia dos folículos linfóides esplênicos. Os demais órgãos examinados não apresentaram alterações. As lesões viscerais foram similares ocorrendo simultaneamente nos dois grupos inoculados, contudo as alterações foram mais severas no grupo inoculado no coxim plantar.Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia2001-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://www.revistas.usp.br/bjvras/article/view/590810.1590/S1413-95962001000200008Brazilian Journal of Veterinary Research and Animal Science; Vol. 38 Núm. 2 (2001); 84-87Brazilian Journal of Veterinary Research and Animal Science; Vol. 38 No. 2 (2001); 84-87Brazilian Journal of Veterinary Research and Animal Science; v. 38 n. 2 (2001); 84-87Brazilian Journal of Veterinary Research and Animal Science; V. 38 N. 2 (2001); 84-871678-44561413-9596reponame:Brazilian Journal of Veterinary Research and Animal Scienceinstname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)instacron:USPporhttps://www.revistas.usp.br/bjvras/article/view/5908/7439Vasconcelos, Simone Bertozi de SouzaBottino, José AméricoGuerra, José LuizJerez, José Antonioinfo:eu-repo/semantics/openAccess2020-06-23T04:38:49Zoai:revistas.usp.br:article/5908Revistahttps://www.revistas.usp.br/bjvrasPUBhttps://www.revistas.usp.br/bjvras/oaibjvras@usp.br1413-95961413-9596opendoar:https://www.revistas.usp.br/bjvras/index2023-01-12T16:42:28.883018Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)false
dc.title.none.fl_str_mv Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
Lesões viscerais induzidas experimentalmente pela inoculação de uma amostra artrotrópica de reovírus em frangos de corte (Gallus gallus)
title Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
spellingShingle Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
Vasconcelos, Simone Bertozi de Souza
Reoviridae
Aves domésticas
Reoviridae
Domestic Avian
title_short Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
title_full Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
title_fullStr Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
title_full_unstemmed Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
title_sort Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
author Vasconcelos, Simone Bertozi de Souza
author_facet Vasconcelos, Simone Bertozi de Souza
Bottino, José Américo
Guerra, José Luiz
Jerez, José Antonio
author_role author
author2 Bottino, José Américo
Guerra, José Luiz
Jerez, José Antonio
author2_role author
author
author
dc.contributor.author.fl_str_mv Vasconcelos, Simone Bertozi de Souza
Bottino, José Américo
Guerra, José Luiz
Jerez, José Antonio
dc.subject.por.fl_str_mv Reoviridae
Aves domésticas
Reoviridae
Domestic Avian
topic Reoviridae
Aves domésticas
Reoviridae
Domestic Avian
description This paper describes visceral lesions induced by inoculation of one-day-old broiler chicks with an avian reovirus strain (S-1133) by oral and foodpad routes. The bursa of Fabricius, intestine, liver, spleen and heart of five birds from inoculated and control groups were collected in the periods of 24, 48, 72 hours and at weekly intervals from 1 to 8 weeks post inoculation for histopathological examination. Interstitial myocarditis was observed 48 hours post inoculation, pericarditis and necrotic myocarditis were seen in the first week post inoculation. The pericardium presented lymphoid follicles at 2 weeks post inoculation and in the subsequent periods there was progressive fibrosis seen until 8 weeks post inoculation. In the liver, infiltration of heterophils and mononuclear cells was observed 72 hours post inoculation, followed by degeneration and necrosis of hepatocytes at one week post inoculation. Lymphoid follicles and heterophilic infiltration were seen from 2 to 8 weeks post inoculation. The spleen presented a progressive necrosis from 48 hours to one week post inoculation and at 2 weeks post inoculation hyperplasia lymphoid was observed in the splenic tissue. No lesions were seen in the other examinated organs. Visceral lesions were similar occurring simultaneously in both inoculated groups, nevertheless the lesions were more severe in the group inoculated via footpad.
publishDate 2001
dc.date.none.fl_str_mv 2001-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/5908
10.1590/S1413-95962001000200008
url https://www.revistas.usp.br/bjvras/article/view/5908
identifier_str_mv 10.1590/S1413-95962001000200008
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv https://www.revistas.usp.br/bjvras/article/view/5908/7439
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
publisher.none.fl_str_mv Universidade de São Paulo. Faculdade de Medicina Veterinária e Zootecnia
dc.source.none.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science; Vol. 38 Núm. 2 (2001); 84-87
Brazilian Journal of Veterinary Research and Animal Science; Vol. 38 No. 2 (2001); 84-87
Brazilian Journal of Veterinary Research and Animal Science; v. 38 n. 2 (2001); 84-87
Brazilian Journal of Veterinary Research and Animal Science; V. 38 N. 2 (2001); 84-87
1678-4456
1413-9596
reponame:Brazilian Journal of Veterinary Research and Animal Science
instname:Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron:USP
instname_str Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
instacron_str USP
institution USP
reponame_str Brazilian Journal of Veterinary Research and Animal Science
collection Brazilian Journal of Veterinary Research and Animal Science
repository.name.fl_str_mv Brazilian Journal of Veterinary Research and Animal Science - Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo (FMVZ-USP)
repository.mail.fl_str_mv bjvras@usp.br
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