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Articles by S.K. Sarkar
Total Records ( 3 ) for S.K. Sarkar
  M.S.I. Akand , K.A. Choudhury , S.M.L. Kabir , S.K. Sarkar and K.M.R. Amin
  An experiment was conducted to develop washed cell fowl cholera (WCFC) vaccine with virulent avian Pasteurella multocida (PM 38) serotype 1 (X-73). A total of 20 Fayoumi birds of either sex of 10 weeks aged were divided into two groups as group A (immunized with washed cell fowl cholera vaccine) and group B (unvaccinated control). Primary vaccination was given through IM route in each birds of group A and booster dose was given through SC route after 15 days of primary vaccination. The presence of antibody against P. multocida was determined by slide agglutination test (SAT) and growth inhibition test (GIT). The degree of antibody levels of prevaccination and post vaccination sera were determined by passive haemagglutination assay (PHA). Sera mean PHA titres at 15, 21, 28 and 42 days post-vaccination in group A were 30.4±4.43, 46.4±6.06, 67.2±11.14 and 134.4±22.28 respectively. The present results revealed that WCFC vaccine worked satisfactory in terms of protection rate against Avian Pasteurellosis. It was also demonstrated that experimental WCFC vaccine conferred 80% protection against challenge infection when all chickens of control group failed to survive against challenge infection.
  S.K. Sarkar , M.B. Rahman , M. Rahman , K.M.R. Amin , M.F.R. Khan and M.M. Rahman
  The sero-prevalence of Mycoplasma gallisepticum (MG) infection of chickens in selected Model Breeder Poultry Farms was determined during the period January to May, 2004. To conduct this study a total of 382 sera samples were collected. Rapid Serum Plate Agglutination (SPA) test was performed using commercial MG antigen (Nobilis® MG) to detect the presence of antibodies against MG. The over all sero-prevalence of MG infection was 58.90% in the study area. The highest prevalence (62.44 %) of MG infection was found in winter season followed by summer season (53.10%). The result further revealed that the infection was higher (59.94%) in female birds than in male birds (48.57%). It was also demonstrated that the infection was higher (62.80%) in Feni sadar than in Chhagoalnaiya thana (53.45%).
  K.M.R. Amin , M.B. Rahman , S.M.L. Kabir , S.K. Sarkar and M.S.I. Akand
  The study was carried out to investigate the serological epidemiology of brucellosis in cows of Mymensingh districts of Bangladesh. Out of 250 animals tested, 2% showed positive reaction. The higher prevalence of bovine brucellosis was recorded in pregnant cows (3.45%) than non-pregnant cows (1.23%). The age wise prevalence of brucellosis in cows older than 4 years of age were found to be more susceptible to infection. The prevalence of brucellosis in cows above four years of age was recorded 2.56% whereas, 1.10% positive cases were found in cows having less than 4 years of age. The prevalence of brucellosis in cows with repeat breeders, previous abortion and retention of placenta was recorded 1(1.64%), 3(12%) and 2(7.41%) respectively. The highest prevalence was recorded in cows with a history of previous abortion. The prevalence was higher in retention of placenta in comparison with repeat breeder cases.
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