EvaluaciÓN de dos vacunas comerciales conteniendo el complejo antÍgeno anticuerpo contra la infecciÓn bursal en pollos de carne

Translated title of the contribution: Evaluation of two commercial vaccines containing theantigen-antibody complex against the infectious bursal disease in broilers

A. Karina Vidal, D'A Eliana Icochea, C. Rosa Perales, S. Alberto Manchego

Research output: Contribution to journalArticlepeer-review

Abstract

The present study evaluated the conferred protection by two immune complex (Icx) vaccines containing a 2512 strain of Infectious Bursa Disease virus (IBDV) linked to a virus specific antibodies. Groups A and B were subcutaneously vaccinated at one day old using two commercial Icx vaccines; Group C was submitted to the traditional vaccination programme using intermediate vaccines at 10 and 18 days of age; and Group D (control) remained without vaccination. At 35 days of age, 45 birds of each group were challenged with a standard IBDV strain F52/70. At days 4, 7, and 10 post challenge, 15 birds of each group were slaughtered for the evaluation of pathological lesions. Protection was measured through clinical signs, bursal index (BI), gross and microscopic lesions, serology, and productive parameters after challenge. Birds of all groups presented depression and diarrhoea, especially in group D. Bursal oedema was observed in all groups until day 10 day post challenge. The BIin the four groups revealed bursal atrophy but the histopathology lesions were more severe in the control group. Seroconversion was observed at the end of the study in groups with Icx vaccines (A y B). Productive parameters of the vaccinated groups were slightly better in vaccinated groups. Although the results indicated that the vaccinated groups were better protected compared with control group, the differences were not statistically significant.

Translated title of the contributionEvaluation of two commercial vaccines containing theantigen-antibody complex against the infectious bursal disease in broilers
Original languageSpanish
Pages (from-to)90-101
Number of pages12
JournalRevista de Investigaciones Veterinarias del Peru
Volume20
Issue number1
StatePublished - 2009
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2009 Universidad Nacional Mayor de San Marcos. All rights reserved.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

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