Classical virulent strains in chicken, causes severe inflammation of bursa resulted in lymphocytic depletion and bursal
atrophy in IBD challenged birds, ultimately causing immunosuppression (Atif et al.
Overexpression of microRNA gga-miR-21 in chicken fibroblasts suppresses replication of infectious bursal
disease virus through inhibiting VP1 translation.
Partial or complete pain relief after the injection process was used as a strong indicator of the presence of an inflamed bursal
Table 3: Antibody titer against infectious bursal
disease in different days by ELISA test Groups 21 days 28 days T1 1789[+ or -]92.
An optimized, highly efficient, self-assembled, subvirus-like particle of infectious bursal
disease virus (IBDV).
Septic bursitis (SB) is characterised by inflammation secondary to bursal
infection and most commonly involves the olecranon and prepatellar bursa due to their superficial locations.
Effect on One-day-old Layer Chicks Simultaneously Vaccinated against Newcastle Disease, Infectious Bronchitis and infectious Bursal
Chronic bursitis is characterized by thickening of bursal
wall, extrusion of fibrous bands or septa within bursal
cavity and generalized sub-cutaneous thickening (Fathy and Radad, 2006).
Patellae (P) and vastus medialis oblique muscle (VMOM) look unremarkable with no signs of prepatellar bursal
In the bursa of Fabricius, moderate interstitial hemorrhage with many megaloschizonts was present in bursal
vessels (Figs 3 and 4).
The birds of these groups were also vaccinated against Infectious Bursal
Disease (on 10th and 19th day of age through eye dropping and drinking water respectively), Avian Influenza (on 11th and 20th day of age via Subcutaneous route) and Infectious Bronchitis (on 1st day through eye dropping).
Chicks were vaccinated twice (days 7 and 28) for Newcastle disease, and once each for Infectious bursal
disease and for hydropericardium syndrome on 14th and 18th day of their age, respectively.