A survey for maintenance of virulent newcastle disease virus-free area in poultry production in Brazil
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
01/06/2010
|
Resumo |
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) In 2003, Brazil was recognized as a pathogenic Newcastle Disease Virus (NDV) strain-free country for commercial poultry. This research was conducted in Brazil between December 2003 and March 2005 to verify the maintenance of this virulent NDV-free status. Serum samples from 5,455 flocks for commercial poultry farms were collected, comprising 81,825 broiler chickens. The farms were located in nine states of the country, grouped in three geographic regions. Serological evidence of NDV infection was detected in 28.8% of the surveyed farms. However, all fifteen viruses isolated and identified as Newcastle Disease Virus (NDV) were characterized as nonpathogenic strains, based on the Intracerebral Pathogenicity Index. These results showed that Brazil preserves the virulent NDV-free status for commercial flocks. |
Formato |
368-375 |
Identificador |
http://dx.doi.org/10.1590/S1517-83822010000200017 Brazilian Journal of Microbiology. Sociedade Brasileira de Microbiologia, v. 41, n. 2, p. 368-375, 2010. 1517-8382 http://hdl.handle.net/11449/2567 10.1590/S1517-83822010000200017 S1517-83822010000200017 WOS:000276670600017 S1517-83822010000200017.pdf |
Idioma(s) |
eng |
Publicador |
Sociedade Brasileira de Microbiologia |
Relação |
Brazilian Journal of Microbiology |
Direitos |
openAccess |
Palavras-Chave | #Newcastle disease virus #Pathogenicity #Poultry #biological characterization |
Tipo |
info:eu-repo/semantics/article |