73/19 | Clinical & Field Article | Poultry Science
Diagnosis of Lymphoid Leucosis in an Organised Aseel Farm
A.Varun, C. Yogesh, P.V.Sangeetha, S.Ezhilvalavan, M. Thangapandiyan, C.Pandian and A.V.OmprakashPoultry Research Station, Tamil Nadu Veterinary and Animal Sciences University, Chennai – 600051, Tamil Nadu.
Published in the Indian Veterinary Journal September 2019 : 96 (09) - pages 78 to 79(Received: March, 2019, Accepted: April, 2019)
Abstract
In a Aseel ock, a weekly mortality of 3 to 5 birds, total of 16 birds was recorded from the period of 34 to 38 weeks of age in an organised poultry farm near Chennai. The birds were vaccinated against Raniket Disease (RD) and Infectious Bursal Disease (IBD). Grossly, diffuse enlarged liver and spleen, with multiple irregular coalescing grey white areas were observed. Proventriculus was thickened heavily with mucosal erosions. Histopathology of liver revealed either multifocal or diffused in ltration of monomorphic neoplastic lymphoblast cells. Spleen and proventriculus revealed nodule formation by neoplastic lymphoblast cells. Based on gross lesions and histopathology the outbreak was diagnosed as lymphoid leucosis
Key Words: Lymphoid leucosis, Native chicken, Histopathology