Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.prevetmed.2019.104748 http://hdl.handle.net/11449/188009 |
Resumo: | A study was conducted on 21 pig herds using one-site production system in the southeast region of Brazil to assess the relationships among serological results for primary pathogens involved in respiratory diseases (Actinobacillus pleuropneumoniae, App; Mycoplasma hyopneumoniae, Mhyo; and swine influenza virus, SIV), cough index, pneumonia index, pleuritis and herd characteristics. The prevalence of antibodies against Mhyo and SIV increased throughout the raising phases, with the highest prevalence in slaughtered pigs (> 40%), while pigs in 65% (14/21) of nurseries demonstrated marked seroprevalence of App that decreased until the day of slaughter. Pleuritis and pulmonary consolidations were recorded in 9.0 and 72.4%, respectively, of the 908 evaluated lungs. Histopathological analysis of the lung lesions revealed suppurative bronchopneumonia in almost half of the lungs (48.9%). Regression analyses were conducted to identify risk factors associated with the cough index; pleuritis; pulmonary consolidation; and App, Mhyo and SIV serological results. All-in-all-out management in nursery buildings reduced the seroprevalence of Mhyo in herds. App seroprevalence was associated with pleuritis, and the presence of cough episodes in growing pigs was associated with SIV seropositivity in nursery pigs. |
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Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in BrazilELISAEnzootic pneumoniaPleuritisPorcine respiratory disease complexRisk factorsA study was conducted on 21 pig herds using one-site production system in the southeast region of Brazil to assess the relationships among serological results for primary pathogens involved in respiratory diseases (Actinobacillus pleuropneumoniae, App; Mycoplasma hyopneumoniae, Mhyo; and swine influenza virus, SIV), cough index, pneumonia index, pleuritis and herd characteristics. The prevalence of antibodies against Mhyo and SIV increased throughout the raising phases, with the highest prevalence in slaughtered pigs (> 40%), while pigs in 65% (14/21) of nurseries demonstrated marked seroprevalence of App that decreased until the day of slaughter. Pleuritis and pulmonary consolidations were recorded in 9.0 and 72.4%, respectively, of the 908 evaluated lungs. Histopathological analysis of the lung lesions revealed suppurative bronchopneumonia in almost half of the lungs (48.9%). Regression analyses were conducted to identify risk factors associated with the cough index; pleuritis; pulmonary consolidation; and App, Mhyo and SIV serological results. All-in-all-out management in nursery buildings reduced the seroprevalence of Mhyo in herds. App seroprevalence was associated with pleuritis, and the presence of cough episodes in growing pigs was associated with SIV seropositivity in nursery pigs.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)School of Agricultural and Veterinarian Sciences São Paulo State University (Unesp)Ourofino Animal HealthVeterinary Diagnostic and Production Animal Medicine College of Veterinary Medicine Iowa State UniversitySchool of Agricultural and Veterinarian Sciences São Paulo State University (Unesp)FAPESP: #2015/25318-9Universidade Estadual Paulista (Unesp)Ourofino Animal HealthIowa State UniversityBaraldi, T. G. [UNESP]Cruz, N. R.N. [UNESP]Pereira, D. A. [UNESP]Galdeano, J. V.B. [UNESP]Gatto, I. R.H. [UNESP]Silva, A. F.D.Panzardi, A.Linhares, D. C.L.Mathias, L. A. [UNESP]de Oliveira, L. G. [UNESP]2019-10-06T15:54:15Z2019-10-06T15:54:15Z2019-11-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://dx.doi.org/10.1016/j.prevetmed.2019.104748Preventive Veterinary Medicine, v. 171.0167-5877http://hdl.handle.net/11449/18800910.1016/j.prevetmed.2019.1047482-s2.0-85071245852Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPreventive Veterinary Medicineinfo:eu-repo/semantics/openAccess2021-10-23T10:11:29Zoai:repositorio.unesp.br:11449/188009Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:14:50.831047Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
title |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
spellingShingle |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil Baraldi, T. G. [UNESP] ELISA Enzootic pneumonia Pleuritis Porcine respiratory disease complex Risk factors |
title_short |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
title_full |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
title_fullStr |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
title_full_unstemmed |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
title_sort |
Antibodies against Actinobacillus pleuropneumoniae, Mycoplasma hyopneumoniae and influenza virus and their relationships with risk factors, clinical signs and lung lesions in pig farms with one-site production systems in Brazil |
author |
Baraldi, T. G. [UNESP] |
author_facet |
Baraldi, T. G. [UNESP] Cruz, N. R.N. [UNESP] Pereira, D. A. [UNESP] Galdeano, J. V.B. [UNESP] Gatto, I. R.H. [UNESP] Silva, A. F.D. Panzardi, A. Linhares, D. C.L. Mathias, L. A. [UNESP] de Oliveira, L. G. [UNESP] |
author_role |
author |
author2 |
Cruz, N. R.N. [UNESP] Pereira, D. A. [UNESP] Galdeano, J. V.B. [UNESP] Gatto, I. R.H. [UNESP] Silva, A. F.D. Panzardi, A. Linhares, D. C.L. Mathias, L. A. [UNESP] de Oliveira, L. G. [UNESP] |
author2_role |
author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) Ourofino Animal Health Iowa State University |
dc.contributor.author.fl_str_mv |
Baraldi, T. G. [UNESP] Cruz, N. R.N. [UNESP] Pereira, D. A. [UNESP] Galdeano, J. V.B. [UNESP] Gatto, I. R.H. [UNESP] Silva, A. F.D. Panzardi, A. Linhares, D. C.L. Mathias, L. A. [UNESP] de Oliveira, L. G. [UNESP] |
dc.subject.por.fl_str_mv |
ELISA Enzootic pneumonia Pleuritis Porcine respiratory disease complex Risk factors |
topic |
ELISA Enzootic pneumonia Pleuritis Porcine respiratory disease complex Risk factors |
description |
A study was conducted on 21 pig herds using one-site production system in the southeast region of Brazil to assess the relationships among serological results for primary pathogens involved in respiratory diseases (Actinobacillus pleuropneumoniae, App; Mycoplasma hyopneumoniae, Mhyo; and swine influenza virus, SIV), cough index, pneumonia index, pleuritis and herd characteristics. The prevalence of antibodies against Mhyo and SIV increased throughout the raising phases, with the highest prevalence in slaughtered pigs (> 40%), while pigs in 65% (14/21) of nurseries demonstrated marked seroprevalence of App that decreased until the day of slaughter. Pleuritis and pulmonary consolidations were recorded in 9.0 and 72.4%, respectively, of the 908 evaluated lungs. Histopathological analysis of the lung lesions revealed suppurative bronchopneumonia in almost half of the lungs (48.9%). Regression analyses were conducted to identify risk factors associated with the cough index; pleuritis; pulmonary consolidation; and App, Mhyo and SIV serological results. All-in-all-out management in nursery buildings reduced the seroprevalence of Mhyo in herds. App seroprevalence was associated with pleuritis, and the presence of cough episodes in growing pigs was associated with SIV seropositivity in nursery pigs. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-10-06T15:54:15Z 2019-10-06T15:54:15Z 2019-11-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1016/j.prevetmed.2019.104748 Preventive Veterinary Medicine, v. 171. 0167-5877 http://hdl.handle.net/11449/188009 10.1016/j.prevetmed.2019.104748 2-s2.0-85071245852 |
url |
http://dx.doi.org/10.1016/j.prevetmed.2019.104748 http://hdl.handle.net/11449/188009 |
identifier_str_mv |
Preventive Veterinary Medicine, v. 171. 0167-5877 10.1016/j.prevetmed.2019.104748 2-s2.0-85071245852 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Preventive Veterinary Medicine |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
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1808129041282105344 |