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| 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 |
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