Effect of maternally-derived antibodies on the performance and immunity of broilers induced by in ovo or post-hatching immunizations with a live vaccine against infectious bursal disease
The interference of low or high maternal antibodies titers on the attenuated infectious bursal disease (IBD) virus (IBDV) vaccine infection and its effects on the performance of broilers vaccinated at the 18th day of incubation (in ovo), at one day of age (subcutaneously-SC), or at 15 days of age (d...
Main Authors: | , , , , , |
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Format: | Article |
Language: | English |
Published: |
Fundação APINCO de Ciência e Tecnologia Avícolas
2009-03-01
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Series: | Brazilian Journal of Poultry Science |
Subjects: | |
Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000100009 |