Abstract
A serological investigation of Mycoplasma gallisepticum (MG) infection in chicken was conducted in the greater Rajshahi district of Bangladesh on 115 flocks during the period from July 2006 to June 2007. A total of 575 sera samples were collected and tested by serum plate agglutination (SPA) test using Mycoplasma gallisepticum antigen (Nobilis MG, Intervet International B.V. Boxmeer-Holland) to determine specific antibodies in different flocks. The overall seroprevalence of MG infection in different flocks was recorded as 55.13%. Seroprevalence of MG infection was found significantly (p < 0.05) higher during winter season (61.48%) than in summer (47.74%). Again this was recorded in different age groups, with significantly (p < 0.01) higher occurrence in young (72.72%) compared to adult (44.00%). On the other hand, the seroprevalence of MG infection was found little (p>0.05) higher in large flocks (62.86%) in comparison to small flocks (52.00%). It has been found that MG infection is still an important disease problem in chickens in Bangladesh. Key words: Seroprevalence, Mycoplasma gallisepticum, chicken, serum plate agglutination (SPA) test DOI = 10.3329/bjvm.v5i1.1302 Bangl. J. Vet. Med. (2007). 5 (1 & 2): 09-14
Highlights
Mycoplasmosis is an important disease problem in chickens caused by four commonly recognized pathogens namely Mycoplasma gallisepticum, Mycoplasma synoviae, Mycoplasma meleagridis and Mycoplasma iowae (Bradbury, 2001)
Among serological tests the serum plate agglutination (SPA) test could be used as a tool for quick detection of Mycoplasma gallisepticum (MG) infection
Statistical analysis The seroprevalence of MG infection with season of year, age of birds and flock size were compared by means of the Chi-square test
Summary
Mycoplasmosis is an important disease problem in chickens caused by four commonly recognized pathogens namely Mycoplasma gallisepticum, Mycoplasma synoviae, Mycoplasma meleagridis and Mycoplasma iowae (Bradbury, 2001). MG infection causes decreased egg production in chickens, turkeys and other avian species. Reports on seroprevalence of mycoplasmosis in chickens are very much limited in the greater Rajshahi district of Bangladesh. The aim of the present study was to determine the seroprevalence of mycoplasmosis in chickens to undertake an effective control measure.
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