Comparative Analysis of Newcastle Disease Seroprevalence in Different Breeds of Pigeon Populations in Chattogram, Bangladesh

This study was performed to determine the antibody against Newcastle disease and serum protein level in pigeons of Chattogram, Bangladesh. The results were evaluated in pigeons of different groups of age, sex, and breed by applying the hemagglutination inhibition (HI) test. A total of 90 pigeons were selected for this research. Antibody titer against Newcastle Disease virus was analyzed according to the different age groups, sex, breeds, and clinical signs of ND infection of pigeons by X2 test. In the case of fewer than 6 months of age pigeons, 73% (n=22) were HI titer positive whereas more than 6 months but less than 1 year 56% (n=32) were HI negative. There was no significant variation among the different sexes. In both male and female pigeon groups, the percentage of HI titer-positive pigeons in females and males was 51.7% and 57.4% respectively. There was significant variation among the different breeds and equal percentages of HI titer positive and negative pigeons were found in Giribaj and local breeds whereas 100% were found in King and Owl breeds and 80% were found in the Siraji breeds. There was significant variation among NDV-infected and non-infected pigeons and an equal percentage of HI titer negative and positive pigeons were found in ND non-infected, whereas (80.8%) were found in ND-infected pigeons. A paired test was done between HI titer and total serum protein. There was a significant (t<0.0) difference among the groups. In the case of HI titer mean was about 23 titer and the standard error was 0.28. In the case of total serum protein mean was 4.45 and the standard error was 0.19.