Abstract: Objective To investigate the prevalence and the antibiotic resistance of bacteria isolated from the trachea and ileocecal junction of grey hamsters (Cricetulus migratorius) which came from Xinjiang area of China. Methods Twenty two bacterial strains were isolated, which were identified by biochemical assays and were evaluated for resistance to thirty six kinds of antibiotics. Results The identification results showed that the twenty two strains belonged to Escherichia (Escherichia coli), Pseudomonas (Pseudomonas aeruginosa), Staphylococcus (Staphylococcus sciuri), Pasteurella (Pasteurella pneumotropica, Pasteurella aerogenes and Pasteurella multocida) and Bacillus (Bacilluspumilus, Bacillus alvei, Bacillus licheniformis and Bacillus cereus). These bacteria were susceptible to tetracycline and levofloxacin. However, their resistence to ampicillin and penicillin G were found. Conclusion Microbial population carried by grey hamster in China had characters of diversity. Results of this study provided scientifical accordance for the microorganism monitoring of grey hameters in China.

Key words: Cricetulus migratorius., Bacteria Isolation, Identification, Susceptibility Test