Prevalence and Antimicrobial Resistance of Escherichia coli and Salmonella spp. Isolated from Wild Animals, Northeast Thailand

Abstract

This study was determined to prevalence and antimicrobial resistance of E. coli and Salmonella isolated from wild animals at Khon Kaen Zoo, Northeast of Thailand. The 140 samples were collect from reptile (34), birds (46) and mammals (60) by rectal swab technique during August-October 2016. Wild animals infected E. coli and Salmonella were 66.4 and 10.7%, respectively. All isolations were tested for antimicrobial sensitivity against ampicillin, ceftazidine, chloramphenicol, ciprofloxacin, gentamicin, nalidixic acid, streptomycin, sulfamethoxazole/trimethoprim and tetracycline. E. coli and Salmonella isolates were resistant to 40.9, 6.5, 9.7, 2.2, 4.3, 2.2, 32.3, 17.2, 36.6% and 13.3, 6.7, 13.3, 20.0, 13.3, 6.7, 73.3, 13.3, 6.7%, respectively. Infection of E. coli and Salmonella in wild animals was impact to animal health, especially, infant animals besides infected animals were carriers and can spread to other animals, environment and their keepers. The infection can be minimized by good management and good quality of feed.