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Highly virulent form of infectious bursal disease in Egypt: Some epidemiological observations

Indian Agricultural Research Journals

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Title Highly virulent form of infectious bursal disease in Egypt: Some epidemiological observations
 
Creator BEKHIT, A B A
 
Subject Broiler, Infectious broiler disease, Virulent IBD, Epidemiology of IBD
 
Description Investigation of 82 severe outbreaks of infectious bursal disease (IBO) in broiler farms, showed differences in mortality rate among the various strains and in the age of susceptibility among the infected flocks. Also the different programmes of vaccination. type of the vaccine, and the time of onset of the disease after vaccination all affected severity of the outbreaks and the mortality rates.  Statistically nonsignificant antigenic differences were detected amongst 5 commercial vaccinal strains of standard serotypes 1 and 8 field isolates oflBD virus (IBDV) Hyperimmune rabbit antisera against vaccinal strains and field isolates were used in cross-neutralization tests. Relatedness values were calculated from geometric mean neutralizing antibody titres based on a minimum of 3 tests.
 
Publisher Directorate of Knowledge Management in Agriculture
 
Contributor
 
Date 2013-10-24
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion

 
Format application/pdf
 
Identifier http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/34369
 
Source The Indian Journal of Animal Sciences; Vol 67, No 5 (1997)
0367-8318
 
Language eng
 
Relation http://epubs.icar.org.in/ejournal/index.php/IJAnS/article/view/34369/15259
 
Rights Copyright (c) 2014 The Indian Journal of Animal Sciences