Humoral immune response in broilers against inclusion body hepatitis virus

Humoral immune response was studied in broilers against inclusion body hepa titis (IBH) inactivated oil adjuvanted vacccine, and virulent PDRC-1 strain of the IBH virus by using agar gel immunodiffusion (AGID) and enzyme linke d immunosorbent assay (ELISA). IBH antibody was detected from seventh onwar ds in IBH vaccinated and infected groups of chickens by both the rests. Inf ected and challenged groups exhibited strong immune response when compared with the vaccinated group. The immunosuppressed group of chickens infected with IBH virus showed poor development of IBH antibody.