Detection of enteric viruses in pancreas and spleen of broilers with runting-stunting syndrome (RSS)

Enteric disease is a multifactorial problem in chickens, which causes gastrointestinal alterations, elevated feed conversions and impairment. In the last years, several enteric viruses were implicated in enteric disease; case reports have shown their presence alone or in concomitant infections durin...

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Veröffentlicht in:Pesquisa Veterinária Brasileira 2016-07, Vol.36 (7), p.595-599
Hauptverfasser: Nuñez, Luis Fabian N., Parra, Silvana H. Santander, Astolfi-Ferreira, Claudete S., Carranza, Claudia, Torre, David I.D. De La, Pedroso, Antonio C., Ferreira, Antonio J. Piantino
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container_title Pesquisa Veterinária Brasileira
container_volume 36
creator Nuñez, Luis Fabian N.
Parra, Silvana H. Santander
Astolfi-Ferreira, Claudete S.
Carranza, Claudia
Torre, David I.D. De La
Pedroso, Antonio C.
Ferreira, Antonio J. Piantino
description Enteric disease is a multifactorial problem in chickens, which causes gastrointestinal alterations, elevated feed conversions and impairment. In the last years, several enteric viruses were implicated in enteric disease; case reports have shown their presence alone or in concomitant infections during outbreaks and have suggested that they might be determining factors in the aetiology of enteric disease. This study shows high detection rates of enteric viruses in the pancreas and spleen in samples from an outbreak of enteritis and malabsorption in 16 chicken flocks (n=80 broilers). Avian nephritis virus (ANV) was the most ubiquitous virus, present in 75% of the flocks followed by avian rotavirus group A (ART-A) with 68.75%, and by chicken astrovirus (CAstV) and chicken parvovirus (ChPV) in 43.75% of samples. Viruses were present in the pancreas of positive flocks at extremely high rates: 100% for ART-A, 91.7% for ANV, 100% for CAstV and 57.14% for ChPV. By contrast, only 16.7% and 57.14% of intestine samples were positive for ANV and CAstV, respectively. Avian reovirus (AReo) and avian adenovirus group 1 (FAdV-1) were not detected. These results suggest that high viral detection rates in pancreas samples may be a result of viremia during enteric disease, with subsequent damage of the exocrine pancreas, leading to runting-stunting syndrome (RSS). Resumo: A doença entérica é um problema multifatorial em galinhas que causa alterações gastrointestinais, conversão alimentar elevada e deficiência de crescimento. Nos últimos anos, os vírus entéricos foram associados à doença entérica; casos reportados mostraram a infecção de um único vírus e também infecções concomitantes durante os surtos sugerindo a presença de múltiplos fatores etiológicos nas doenças entéricas. Este estudo mostra uma alta taxa de detecção dos vírus entéricos em amostras de pâncreas e baço de um surto de enterite e má-absorção em 16 lotes de frangos (n=80 frangos). O vírus de nefrite aviária (ANV) foi o vírus mais detectado, estando presente em 75% dos lotes seguido pelo rotavírus aviário grupo A (ART-A) em 68,75% dos casos, e pelo astrovirus (CAstV) e parvovírus aviários (ChPV), ambos em 43,75% das amostras. Os vírus estavam presentes no pâncreas dos lotes positivos em percentuais elevados: 100% para ART-A e CAstV; 91,7% para ANV, e em 57,14% para ChPV. Em contraste, somente 16,7% e 57,14%, em amostras de intestino, foram positivos para ANV e CAstV, respectivamente. Reovírus aviário (AReo) e o
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Santander ; Astolfi-Ferreira, Claudete S. ; Carranza, Claudia ; Torre, David I.D. De La ; Pedroso, Antonio C. ; Ferreira, Antonio J. Piantino</creator><creatorcontrib>Nuñez, Luis Fabian N. ; Parra, Silvana H. Santander ; Astolfi-Ferreira, Claudete S. ; Carranza, Claudia ; Torre, David I.D. De La ; Pedroso, Antonio C. ; Ferreira, Antonio J. Piantino</creatorcontrib><description>Enteric disease is a multifactorial problem in chickens, which causes gastrointestinal alterations, elevated feed conversions and impairment. In the last years, several enteric viruses were implicated in enteric disease; case reports have shown their presence alone or in concomitant infections during outbreaks and have suggested that they might be determining factors in the aetiology of enteric disease. This study shows high detection rates of enteric viruses in the pancreas and spleen in samples from an outbreak of enteritis and malabsorption in 16 chicken flocks (n=80 broilers). Avian nephritis virus (ANV) was the most ubiquitous virus, present in 75% of the flocks followed by avian rotavirus group A (ART-A) with 68.75%, and by chicken astrovirus (CAstV) and chicken parvovirus (ChPV) in 43.75% of samples. Viruses were present in the pancreas of positive flocks at extremely high rates: 100% for ART-A, 91.7% for ANV, 100% for CAstV and 57.14% for ChPV. By contrast, only 16.7% and 57.14% of intestine samples were positive for ANV and CAstV, respectively. Avian reovirus (AReo) and avian adenovirus group 1 (FAdV-1) were not detected. These results suggest that high viral detection rates in pancreas samples may be a result of viremia during enteric disease, with subsequent damage of the exocrine pancreas, leading to runting-stunting syndrome (RSS). Resumo: A doença entérica é um problema multifatorial em galinhas que causa alterações gastrointestinais, conversão alimentar elevada e deficiência de crescimento. Nos últimos anos, os vírus entéricos foram associados à doença entérica; casos reportados mostraram a infecção de um único vírus e também infecções concomitantes durante os surtos sugerindo a presença de múltiplos fatores etiológicos nas doenças entéricas. Este estudo mostra uma alta taxa de detecção dos vírus entéricos em amostras de pâncreas e baço de um surto de enterite e má-absorção em 16 lotes de frangos (n=80 frangos). O vírus de nefrite aviária (ANV) foi o vírus mais detectado, estando presente em 75% dos lotes seguido pelo rotavírus aviário grupo A (ART-A) em 68,75% dos casos, e pelo astrovirus (CAstV) e parvovírus aviários (ChPV), ambos em 43,75% das amostras. Os vírus estavam presentes no pâncreas dos lotes positivos em percentuais elevados: 100% para ART-A e CAstV; 91,7% para ANV, e em 57,14% para ChPV. Em contraste, somente 16,7% e 57,14%, em amostras de intestino, foram positivos para ANV e CAstV, respectivamente. Reovírus aviário (AReo) e o adenovírus do grupo 1 (FAdV-1) não foram detectados. Estes resultados sugerem que os elevados percentuais de vírus detectados em amostras de pâncreas podem estar associados à viremia durante a doença entérica, com subsequente lesão no pâncreas exócrino das aves levando ao desenvolvimento da síndrome de nanismo e raquitismo.</description><identifier>ISSN: 0100-736X</identifier><identifier>ISSN: 1678-5150</identifier><identifier>EISSN: 0100-736X</identifier><identifier>DOI: 10.1590/S0100-736X2016000700006</identifier><language>eng</language><publisher>Colégio Brasileiro de Patologia Animal - CBPA</publisher><subject>Broiler ; detection ; enteric viruses ; pancreas ; RSS ; runting-stunting syndrome ; spleen ; VETERINARY SCIENCES</subject><ispartof>Pesquisa Veterinária Brasileira, 2016-07, Vol.36 (7), p.595-599</ispartof><rights>This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c411t-11c8d0f5d905d07ae111cc77f784152af32958182bf2078d8c968feb051b2f93</citedby><cites>FETCH-LOGICAL-c411t-11c8d0f5d905d07ae111cc77f784152af32958182bf2078d8c968feb051b2f93</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,864,885,27924,27925</link.rule.ids></links><search><creatorcontrib>Nuñez, Luis Fabian N.</creatorcontrib><creatorcontrib>Parra, Silvana H. Santander</creatorcontrib><creatorcontrib>Astolfi-Ferreira, Claudete S.</creatorcontrib><creatorcontrib>Carranza, Claudia</creatorcontrib><creatorcontrib>Torre, David I.D. De La</creatorcontrib><creatorcontrib>Pedroso, Antonio C.</creatorcontrib><creatorcontrib>Ferreira, Antonio J. Piantino</creatorcontrib><title>Detection of enteric viruses in pancreas and spleen of broilers with runting-stunting syndrome (RSS)</title><title>Pesquisa Veterinária Brasileira</title><addtitle>Pesq. Vet. Bras</addtitle><description>Enteric disease is a multifactorial problem in chickens, which causes gastrointestinal alterations, elevated feed conversions and impairment. In the last years, several enteric viruses were implicated in enteric disease; case reports have shown their presence alone or in concomitant infections during outbreaks and have suggested that they might be determining factors in the aetiology of enteric disease. This study shows high detection rates of enteric viruses in the pancreas and spleen in samples from an outbreak of enteritis and malabsorption in 16 chicken flocks (n=80 broilers). Avian nephritis virus (ANV) was the most ubiquitous virus, present in 75% of the flocks followed by avian rotavirus group A (ART-A) with 68.75%, and by chicken astrovirus (CAstV) and chicken parvovirus (ChPV) in 43.75% of samples. Viruses were present in the pancreas of positive flocks at extremely high rates: 100% for ART-A, 91.7% for ANV, 100% for CAstV and 57.14% for ChPV. By contrast, only 16.7% and 57.14% of intestine samples were positive for ANV and CAstV, respectively. Avian reovirus (AReo) and avian adenovirus group 1 (FAdV-1) were not detected. These results suggest that high viral detection rates in pancreas samples may be a result of viremia during enteric disease, with subsequent damage of the exocrine pancreas, leading to runting-stunting syndrome (RSS). Resumo: A doença entérica é um problema multifatorial em galinhas que causa alterações gastrointestinais, conversão alimentar elevada e deficiência de crescimento. Nos últimos anos, os vírus entéricos foram associados à doença entérica; casos reportados mostraram a infecção de um único vírus e também infecções concomitantes durante os surtos sugerindo a presença de múltiplos fatores etiológicos nas doenças entéricas. Este estudo mostra uma alta taxa de detecção dos vírus entéricos em amostras de pâncreas e baço de um surto de enterite e má-absorção em 16 lotes de frangos (n=80 frangos). O vírus de nefrite aviária (ANV) foi o vírus mais detectado, estando presente em 75% dos lotes seguido pelo rotavírus aviário grupo A (ART-A) em 68,75% dos casos, e pelo astrovirus (CAstV) e parvovírus aviários (ChPV), ambos em 43,75% das amostras. Os vírus estavam presentes no pâncreas dos lotes positivos em percentuais elevados: 100% para ART-A e CAstV; 91,7% para ANV, e em 57,14% para ChPV. Em contraste, somente 16,7% e 57,14%, em amostras de intestino, foram positivos para ANV e CAstV, respectivamente. Reovírus aviário (AReo) e o adenovírus do grupo 1 (FAdV-1) não foram detectados. Estes resultados sugerem que os elevados percentuais de vírus detectados em amostras de pâncreas podem estar associados à viremia durante a doença entérica, com subsequente lesão no pâncreas exócrino das aves levando ao desenvolvimento da síndrome de nanismo e raquitismo.</description><subject>Broiler</subject><subject>detection</subject><subject>enteric viruses</subject><subject>pancreas</subject><subject>RSS</subject><subject>runting-stunting syndrome</subject><subject>spleen</subject><subject>VETERINARY SCIENCES</subject><issn>0100-736X</issn><issn>1678-5150</issn><issn>0100-736X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>DOA</sourceid><recordid>eNptUU1LAzEQXUTBWv0N5qiHrZPdZpM9Sv0qFATbg7eQJpOask1KslX67127Igoehnm8mfcY3mTZJYURZTXczIEC5LysXgugFQDwrqA6ygY_g-Nf-DQ7S2kNUPCS00Fm7rBF3brgSbAEfYvRafLu4i5hIs6TrfI6okpEeUPStkE8bC5jcA3GRD5c-0bizrfOr_LU9oCkvTcxbJBcvczn1-fZiVVNwovvPswWD_eLyVM-e36cTm5nuR5T2uaUamHAMlMDM8AV0o7RnFsuxpQVypZFzQQVxdIWwIURuq6ExSUwuixsXQ6zaW9rglrLbXQbFfcyKCcPRIgrqWLrdINSlGiLsVYKkY-hFooBq7nprEFwTmnnNeq9knbYBLkOu-i72-Uhbvk3blazTsB7gY4hpYj25wAK8utR_yq7R5WfprGD4Q</recordid><startdate>201607</startdate><enddate>201607</enddate><creator>Nuñez, Luis Fabian N.</creator><creator>Parra, Silvana H. 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Piantino</creatorcontrib><collection>CrossRef</collection><collection>SciELO</collection><collection>DOAJ Directory of Open Access Journals</collection><jtitle>Pesquisa Veterinária Brasileira</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nuñez, Luis Fabian N.</au><au>Parra, Silvana H. Santander</au><au>Astolfi-Ferreira, Claudete S.</au><au>Carranza, Claudia</au><au>Torre, David I.D. De La</au><au>Pedroso, Antonio C.</au><au>Ferreira, Antonio J. Piantino</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Detection of enteric viruses in pancreas and spleen of broilers with runting-stunting syndrome (RSS)</atitle><jtitle>Pesquisa Veterinária Brasileira</jtitle><addtitle>Pesq. Vet. Bras</addtitle><date>2016-07</date><risdate>2016</risdate><volume>36</volume><issue>7</issue><spage>595</spage><epage>599</epage><pages>595-599</pages><issn>0100-736X</issn><issn>1678-5150</issn><eissn>0100-736X</eissn><abstract>Enteric disease is a multifactorial problem in chickens, which causes gastrointestinal alterations, elevated feed conversions and impairment. In the last years, several enteric viruses were implicated in enteric disease; case reports have shown their presence alone or in concomitant infections during outbreaks and have suggested that they might be determining factors in the aetiology of enteric disease. This study shows high detection rates of enteric viruses in the pancreas and spleen in samples from an outbreak of enteritis and malabsorption in 16 chicken flocks (n=80 broilers). Avian nephritis virus (ANV) was the most ubiquitous virus, present in 75% of the flocks followed by avian rotavirus group A (ART-A) with 68.75%, and by chicken astrovirus (CAstV) and chicken parvovirus (ChPV) in 43.75% of samples. Viruses were present in the pancreas of positive flocks at extremely high rates: 100% for ART-A, 91.7% for ANV, 100% for CAstV and 57.14% for ChPV. By contrast, only 16.7% and 57.14% of intestine samples were positive for ANV and CAstV, respectively. Avian reovirus (AReo) and avian adenovirus group 1 (FAdV-1) were not detected. These results suggest that high viral detection rates in pancreas samples may be a result of viremia during enteric disease, with subsequent damage of the exocrine pancreas, leading to runting-stunting syndrome (RSS). Resumo: A doença entérica é um problema multifatorial em galinhas que causa alterações gastrointestinais, conversão alimentar elevada e deficiência de crescimento. Nos últimos anos, os vírus entéricos foram associados à doença entérica; casos reportados mostraram a infecção de um único vírus e também infecções concomitantes durante os surtos sugerindo a presença de múltiplos fatores etiológicos nas doenças entéricas. Este estudo mostra uma alta taxa de detecção dos vírus entéricos em amostras de pâncreas e baço de um surto de enterite e má-absorção em 16 lotes de frangos (n=80 frangos). O vírus de nefrite aviária (ANV) foi o vírus mais detectado, estando presente em 75% dos lotes seguido pelo rotavírus aviário grupo A (ART-A) em 68,75% dos casos, e pelo astrovirus (CAstV) e parvovírus aviários (ChPV), ambos em 43,75% das amostras. Os vírus estavam presentes no pâncreas dos lotes positivos em percentuais elevados: 100% para ART-A e CAstV; 91,7% para ANV, e em 57,14% para ChPV. Em contraste, somente 16,7% e 57,14%, em amostras de intestino, foram positivos para ANV e CAstV, respectivamente. Reovírus aviário (AReo) e o adenovírus do grupo 1 (FAdV-1) não foram detectados. Estes resultados sugerem que os elevados percentuais de vírus detectados em amostras de pâncreas podem estar associados à viremia durante a doença entérica, com subsequente lesão no pâncreas exócrino das aves levando ao desenvolvimento da síndrome de nanismo e raquitismo.</abstract><pub>Colégio Brasileiro de Patologia Animal - CBPA</pub><doi>10.1590/S0100-736X2016000700006</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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subjects Broiler
detection
enteric viruses
pancreas
RSS
runting-stunting syndrome
spleen
VETERINARY SCIENCES
title Detection of enteric viruses in pancreas and spleen of broilers with runting-stunting syndrome (RSS)
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