Prevalence of newcastle disease virus in broiler chickens (Gallus gallus) in Brazil
| Autor: | Maria da Glória Buzinaro, Dilmara Reischak, L Doretto Jr, A.O Mendonça, A Ramazzoti, S.C.A Camillo, S.A.M Ribeiro, Helena Lage Ferreira, Fernando Rosado Spilki, M.A Orsi, Clarice Weis Arns |
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| Přispěvatelé: | Ministério da Agricultura, Pecuária e Abastecimento (MAPA), Universidade Estadual de Campinas (UNICAMP), Centro Brasileiro de Pesquisa Animal, Centro Universitário Feevale, Universidade Estadual Paulista (Unesp) |
| Jazyk: | angličtina |
| Rok vydání: | 2010 |
| Předmět: |
Veterinary medicine
animal structures animal diseases Veterinary Microbiology Prevalence lcsh:QR1-502 Biology Microbiology Newcastle disease lcsh:Microbiology Blood serum Seroprevalence pathogenicity broiler chickens NDV-free status business.industry Newcastle Disease Virus Broiler Embryonated Poultry farming biology.organism_classification Virology biological characterization embryonic structures Flock business Research Paper |
| Zdroj: | Brazilian Journal of Microbiology, Vol 41, Iss 2, Pp 349-357 (2010) Brazilian Journal of Microbiology Brazilian Journal of Microbiology, Volume: 41, Issue: 2, Pages: 349-357, Published: JUN 2010 SciELO Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP Scopus-Elsevier Brazilian Journal of Microbiology v.41 n.2 2010 Sociedade Brasileira de Microbiologia (SBM) instacron:SBM |
| ISSN: | 1678-4405 1517-8382 |
| Popis: | Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:41:30Z No. of bitstreams: 1 S1517-83822010000200014.pdf: 273496 bytes, checksum: 8c9348f98a60ce6f6dbb82038c0f7d2b (MD5) Made available in DSpace on 2013-08-22T18:41:30Z (GMT). No. of bitstreams: 1 S1517-83822010000200014.pdf: 273496 bytes, checksum: 8c9348f98a60ce6f6dbb82038c0f7d2b (MD5) Previous issue date: 2010-06-01 Made available in DSpace on 2013-09-30T17:54:55Z (GMT). No. of bitstreams: 2 S1517-83822010000200014.pdf: 273496 bytes, checksum: 8c9348f98a60ce6f6dbb82038c0f7d2b (MD5) S1517-83822010000200014.pdf.txt: 33650 bytes, checksum: 4e282cf19490cd6f0d2dd30b8283619f (MD5) Previous issue date: 2010-06-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:15:23Z No. of bitstreams: 2 S1517-83822010000200014.pdf: 273496 bytes, checksum: 8c9348f98a60ce6f6dbb82038c0f7d2b (MD5) S1517-83822010000200014.pdf.txt: 33650 bytes, checksum: 4e282cf19490cd6f0d2dd30b8283619f (MD5) Made available in DSpace on 2014-05-20T13:15:23Z (GMT). No. of bitstreams: 2 S1517-83822010000200014.pdf: 273496 bytes, checksum: 8c9348f98a60ce6f6dbb82038c0f7d2b (MD5) S1517-83822010000200014.pdf.txt: 33650 bytes, checksum: 4e282cf19490cd6f0d2dd30b8283619f (MD5) Previous issue date: 2010-06-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) This study was carried out during 2002/2003, aiming to determine the prevalence of virulent Newcastle disease virus strains (NDV) in Brazilian commercial poultry farms. Clinical samples were obtained from the Southeastern, Southern and Central-Western regions, which comprise the main area of the Brazilian poultry production. Serum samples and tracheal and cloacal swabs of 23,745 broiler chickens from 1,583 flocks, including both vaccinated chickens and those with no vaccination information, were tested for NDV using a diagnostic ELISA kit. The seropositivity was 39.1%, and the isolation percentage by flock varied from 1.0 to 7.6%, and by region from 6.5 to 58.4%. Higher isolation rates (74.3-83.3%) were obtained after three passages in embryonated chicken eggs. All isolates preliminarily identified as NDV were characterized as nonpathogenic strains, as their Intracerebral Pathogenicity Index (ICPI) was below 0.7. Based on results of this study, Brazil can claim a virulent NDV-free status for commercial flocks. Ministério da Agricultura, Pecuária e Abastecimento Laboratório Nacional Agropecuário Universidade Estadual de Campinas Faculdade de Ciências Médicas Centro Brasileiro de Pesquisa Animal Centro Universitário Feevale Instituto de Ciências da Saúde Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Medicina Veterinária Preventiva e Reprodução Animal Universidade Estadual de Campinas Instituto de Biologia Laboratório de Virologia Universidade Estadual Paulista Faculdade de Ciências Agrárias e Veterinárias Departamento de Medicina Veterinária Preventiva e Reprodução Animal |
| Databáze: | OpenAIRE |
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