Visceral lesion induced experimentally by an artrotropic strain of reovirus in broiler (Gallus gallus)
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , , |
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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Brazilian Journal of Veterinary Research and Animal Science |
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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 |
_version_ |
1797051555766075392 |