Isolation and Characterization of Salmonella Serovars from Buffaloes in Mymensingh, Bangladesh

Abstract

An investigation was carried out focusing the isolation and characterization of Salmonella serovars from buffaloes of some selected areas of Mymensingh district of Bangladesh. The objectives was to isolate and identify Salmonella serovars from diarrheic and apparently healthy buffaloes and to characterize the isolates by cultural and biochemical characteristics, serological tests and antibiotic sensitivity analysis. A total of 38 samples comprising rectal swabs and faeces were collected from 38 buffaloes originating from 3 selected areas of Mymensingh. Out of these 38 samples, 8 (20.63%) were found to be positive for Salmonella spp. All isolates fermented dextrose, maltose and mannitol with production of acid and gas but did not ferment sucrose and lactose. On the other hand, these isolates showed Indole and Voges- Proskaure test negative, Methyl-Red test positive. All these isolates subjected to rapid plate agglutination test with polyvalent “O” ( poly ?O’) and polyvalent “H” ( poly ?H’) antisera where positive agglutination were observed. All isolates were highly sensitive to ciprofloxacin, moderately sensitive to co-trimoxazole, gentamycin, tetracycline and less sensitive to erythromycin and resistant to furazolidone. DOI: http://dx.doi.org/10.3329/mh.v1i2.14092 Microbes and Health, 2012 1(2): 62-64