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	Provedor de dados Rev. Bras. Ciênc. Avic. (2) Autor Aguiar Filho,JLC (2) Cardoso,WM (2) Oliveira,WF (2) Romão,JM (2) Salles,RPR (2) Câmara,SR (1) Siqueira,AA (1) Sobral,MHNR (1) Sobral,MHR (1) Teixeira,RSC (1) Texeira,RSC (1) Mais... Palavra-chave Viral interference (2) Antigenic variation (1) Infectious bronchitis (1) Newcastle disease (1) Polyvalent vaccinations (1) Vaccines (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Ano 2006 (1) 2005 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Interference of infectious bursal disease virus on antibody production against Newcastle disease and infectious bronchitis virus Rev. Bras. Ciênc. Avic. Cardoso,WM; Aguiar Filho,JLC; Romão,JM; Salles,RPR; Câmara,SR; Siqueira,AA; Oliveira,WF; Sobral,MHNR; Texeira,RSC. This work has the objective of verifying the interference of infectious bursal disease virus in the antibody production against Newcastle disease virus and infectious bronchitis virus. The experiment was carried out with 640 day-old-chicks from a 42 weeks old hen flock. The birds were separated into eight experimental groups (n=80/group) and were submitted to different combinations of vaccinations, with live vaccines, to Newcastle disease, avian infectious bronchitis, and infectious bursal disease with diverse combinations of days of vaccination. We verified that the utilization of polyvalent vaccinal programs have a different efficacy comparing to monovalent vaccinations when Newcastle disease, infectious bronchitis, and infectious bursal disease... Tipo: Info:eu-repo/semantics/article Palavras-chave: Antigenic variation; Polyvalent vaccinations; Viral interference. Ano: 2006 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2006000300007 Effect of associated vaccines on the interference between Newcastle disease virus and infectious bronchitis virus in broilers Rev. Bras. Ciênc. Avic. Cardoso,WM; Aguiar Filho,JLC; Romão,JM; Oliveira,WF; Salles,RPR; Teixeira,RSC; Sobral,MHR. The phenomenon of viral interference between live vaccines against Newcastle Disease and infectious bronchitis has been reported since the 50's and many researchers have reported its prejudicial effects on avian immunization. Therefore, this study evaluated the effect of associated vaccines on the interference between Newcastle disease virus (NDV) and infectious bronchitis virus (IBV) in broilers. There were 400 broiler chicks divided into five groups. The groups were submitted to mono or polyvalent vaccinations against IBV and NDV, except for the non-vaccinated control group (CG). Sera were collected at 35 and 45 days of age and submitted to serologic tests to assess antibody levels. It was observed the occurrence of interference in the immune response... Tipo: Info:eu-repo/semantics/article Palavras-chave: Infectious bronchitis; Newcastle disease; Vaccines; Viral interference. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2005000300008 Registros recuperados: 2 Primeira ... 1 ... Última

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