Antibiogram and Plasmid Profile Analysis of Isolated Poultry Salmonella of Bangladesh

Research Article
Antibiogram and Plasmid Profile Analysis of Isolated Poultry Salmonella of Bangladesh

M.F.R. Khan, M.B. Rahman, M.S.R. Khan, K.H.M.N.H. Nazir and M. Rahman

Pakistan Journal of Biological Sciences, 2005, 8(11), 1614-1619.

Abstract

Antibiogram study and plasmid profile analyses were conducted to find out the correlation of the recently isolated Salmonella organisms of Bangladesh. Antibiogram study revealed that the isolates were highly sensitive to Ciprofloxacin, Cephalexin and Kanamycin. In the plasmid profile analysis it was observed that out of 4 isolates of Mymensingh district (M1 to M4), 3 isolates showed 3 plasmid bands in each and 1 isolate showed 4 plasmid bands. The estimated size of the plasmid bands of M1, M2, M3 and M4 were (33.5, 24.50, 4.0, 3.0); (33.5, 3.0, 1.0); (33.5, 3.0, 1.0) and (5.0, 4.0, 1.8) kb, respectively. On the other hand among the isolates of Feni district (F1 to F9), 6 isolates (F4, F5, F6, F7, F8 and F9) showed 5 number of plasmid bands in each and the estimated plasmid band size were same (33.5, 5.0, 4.0, 2.0, 1.8). The plasmid bands of other 3 isolates (F1, F2 and F 3) were found to be different and the estimated size were recorded as 4 (33.5, 5.0, 1.6, 1.5); 3 (33.5, 1.6, 1.5) and 1 (0.7), respectively. Among the isolates of Dhaka district (D1 to D11); no plasmid band was found to be detected in 3 isolates (D2, D5 and D6). The number of plasmid bands of other isolates of D1, D3, D4, D7, D8, D9, D10 and D11 were 4 and the estimated size were determined as (33.5, 15.0, 2.0, 1.0); 5 (33.5, 15.0, 3.0, 2.0, 1.0); 5 (33.5, 5.0, 4.0, 1.8, 1.3); 3 (33.5, 3.0, 1.0); 3 (33.5, 3.0, 1.0); 1(33.5); 2 (33.5, 3.0) and 2 (33.5, 4.0) kb, respectively. All these isolates were tested for antibiotic sensitivity against 8 commonly used antibiotics belonging to different groups. From the antibiogram study it was revealed that all the isolates of Mymensingh and Dhaka district were 100% resistant to Cloxacillin and among the isolates of Feni district 100% were resistant to Erythromycin and Cloxacillin. Plasmid profile analysis of the isolated Salmonella organisms revealed that the isolates carrying multiple plasmids which might be the cause of various degree of antibiotic resistance.

ASCI-ID: 1-3721

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