Aim: Salmonellosis is one of the most common, zoonotic diseases and presence of antimicrobial resistant Salmonella in wild birds is a global public health threats. Throughout the last decades, multi-drug resistance of Salmonella spp. has increased, particularly in developing countries. Therefore, a cross-sectional study was conducted to investigate prevalence of Salmonella spp. and antimicrobial resistance pattern against Salmonella spp. from two species of resident wild birds named House Crow (Corvus splendens) and Asian pied starling (Gracupica contra).
Materials and methods: Samples were collected from cloacal swabs of Crows and Asian pied starling for isolating Salmonella spp. (bacteriological culture methods) followed by antimicrobial susceptibility testing (disk diffusion method) against Salmonella spp. isolates during the period of March to December, 2014.
Results: The prevalence of Salmonella in Asian pied starling and house Crows were (67%) and (65%), respectively. Within the category of samples from different species, the variation in prevalence were not varied significantly (p>0.05). Isolated Salmonella spp. was tested for resistance to six different antimicrobial agents. Among six antimicrobial tested 100% resistance were found to Penicillin, Oxacillin and Clindamycin followed by Erythromycin (50-93%), Kanamycin (7-20%) and Cephalothin (30-67%) from both species of birds. Kanamycin remained sensitive in (70-73%), Cephalothin (26-70%) and Erythromycin appeared to be (0-30%) sensitive against Salmonella spp. isolates. Isolated Salmonella spp. were multidrug resistant up to three of the six antimicrobials tested.
Conclusion: In conclusion, it can be said that the rational use of antibiotics need to be adopt in treatment of disease for livestock, poultry and human of Bangladesh to limit the emergence of drug resistance to Salmonella spp.
Key words: Antimicrobial, Prevalence, Resistance, Salmonella, Resident wild birds
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