Prevalence and antimicrobial resistance of Salmonella sp. isolated from domestic animals in Eastern China

Abstract

A total of 163 Salmonella sp. isolates representing 15 serorypes recovered from faecal samples of domestic animals (chicken, duck, goose and pig) in easteni China during 2008-2009 were tested for antimicrobial susceptibilities. S. Senftenberg, S. Typhimurium S. Pullorum and S. Enteritidis were the most prevalent serovars. Resistance was most often observed to carbenicillin (65.4%), followed by nalidixic acid (48.8%), tetracycline (46.9%), sulfafurazole (45.7%), ampicillin (43.2%), streptomycin (38.3%) and trimethoprim/sulfamethoxazole (33.3%). With regards to the source of isolates, chicken Salmonella sp. isolates displayed the highest rate of resistance being resistant to at least one antimicrobial (100%) followed by those recovered from pig (93.4%), goose (90.7%) and duck (80%). Serovars commonly showing Multidrug Resistance (MDR) to >9 antimicrobials were S. Enteritidis (55.6%), S. Pullorum (17.9%) and S. Typhimurium (17.2%). This study has revealed the prevalence and antimicrobial resistance patterns of Salmonella sp. in domestic animals in eastern China and provides the important information for better controlling these pathogens. © Medwell Journals, 2010.