Concurrent Infections of Chicken Infectious Anemia and Infectious Bursal Disease in 5 Weeks Old Pullets in Jos, Plateau State, Nigeria
Concurrent Infections of Chicken Infectious Anemia and Infectious Bursal Disease in 5 Weeks Old Pullets in Jos, Plateau State, Nigeria
Adedeji A.J, Sati N.M, Pewan S.B, Ogbu K.I, Adole J.A, Lazarus D.D, Ijiwo S.J, Okpanachi A, Nwagbo I.O, Joannis, T.M and Abdu P.A
ABSTRACT
In the field it is very difficult to differentiate between chicken infectious anemia (CIA) and infectious bursal disease (IBD) and co-infection of CIA and IBD. Infectious bursal disease was tentatively diagnosed in 5,000, 5 weeks old Hy-Line and ISA Brown pullets in a commercial poultry farm in Jos, Plateau State, Nigeria with mortality of up to 79.12%. The clinical signs observed were prostration, ruffled feathers, diarrhea, anorexia, trembling and mortality that lasted for 6 days. Postmortem findings include ecchymotic hemorrhages in the breast and thigh muscles, mucosa of the junction between the proventriculus and gizzard, severely enlarged and hemorrhagic bursa of Fabricius (BF) and splenomegaly. The bursa of Fabricius was harvested for laboratory investigation using AGID for infectious bursal disease virus (IBDV). As part of investigation to screen for co-infection of CIA and IBD in the flock, the BF was also screened for the presence of chicken anemia virus (CAV) using conventional polymerase chain reaction (PCR). IBDV antigen was detected by AGID while CAV by PCR. This confirms the diagnosis of concurrent infection of CIA and IBD in the affected flock. This is the first case report of a concurrent and natural field outbreak of CIA and IBD in a commercial poultry farm in Nigeria.
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