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International Journal of Poultry Science
Year: 2002  |  Volume: 1  |  Issue: 5  |  Page No.: 161 - 163

Evaluation of Maternal and Humoral Immunity against Newcastle Disease Virus in Chicken

M. M. Rahman, A. S. M. Bari, M. Giasuddin, M. R. Islam, J. Alam, G. C. Sil and M. M. Rahman    

Abstract: An attempt has been undertaken to evaluate the humoral immunity against Newcastle disease in vaccinated chickens. Two different vaccination schedules were followed in 4000 Bovans White chickens (2000 in each treatment) with the history of ND vaccination in parent stock. The mean HI antibody titres of control groups of Treatment-1 and Treatment-2 revealed day-1 (285.51 and 289.43), day-5 (145.74 and 143.78), day-10 (73.58 and 71.47), day-15 (34.44 and 34.52) and day-20 (18.65 and 17.14) respectively. Birds of treatment-1 were vaccinated at 10 and 24 days old with live ND clone-30 vaccine and at 31 (half dose) and 120 (full dose) days old with oil adjuvant inactivated vaccine. Birds of treatment-2 were vaccinated at 10, 24 and 60 days old with live ND clone-30 vaccine and at 120 days old with oil adjuvant inactivated vaccine (full dose). The mean HI antibody titres for vaccinated groups of Treatment-1 and Treatment-2 revealed at day-10 (69.71 and 70.39), day-24 (19.73 and 24.34), day-31 (57.85 and 53.72), day-60 (251.52 and 76.34), day-120 (50.30 and 26.28) and day-150 (442.71 and 371.80) respectively. Vaccination program used in Treatment-1 gave better humoral immune response than in Treatment-2.

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