关键词: 仓鼠; 大肠杆菌; 分离鉴定; 药敏试验

Abstract: In order to investigate the crucial reason which led to acute death of newborn hamsters on a hamster farm in Changchun and response paroxysmal disease, the death hamsters were treated by laboratory examination and one bacterial strain was isolated from hamsters which died acutely in this study. The isolated bacteria was identified as one Escherichia coli tract inflated extremely. Drug sensitivity test showed that isolated bacteria was sensitive to many kinds of antibiotics,but had strong drug resistance to Tetracycline antibiotics, Sulfame-thoxazole and Trimethoprium (SXT), and Gentamycin could be used to treat infection caused by this E.coli strain. All results obtained from this study provided well foundation for the further research on the pathogenesis,prevention and control of acute colibacillosis’ producted by bacteria.

Key words: hamster; pathogenic Escherichia coli; isolation and identification; drug sensitivity test