›› 2010, Vol. 37 ›› Issue (2): 180-181.

• 疾病防治 • Previous Articles     Next Articles

Isolation, Identification and Drug- Sensitivity Test of PathogenicE. coli in Intensive Chicken Farms

ZHANG Gui- zhi1， JIN Shuang- xing1， LI Jian- zhong2   

  1. （1.Animal Science Department, Zhengzhou College of Animal Husbandry＆Engineering, Zhengzhou 450011,China;2.Henan Biyang Trade Corporation, Zhumadian 463700,China）
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-02-20 Published:2010-02-20

Abstract:
Abstract：Diseased chicken collected in the Zhumadian district chicken farms were examined. The investigation showed that pathogenic E. coli was main reasons that caused chicken most of death. Drug- sensitivity test to 16 drugs was performed with 10 isolated pathogenic E. coli strains. The results suggested that most of E. coli strains were highly susceptible to Lincomycin- Spectinomycin, Ceftriaxone, Amikacin, Nemomycin, Ofloxacin. The frequency of drug- sensitivity was 80%, 60%, 60%, 60%, 50% respectively. Drug- sensitivity to Colistin and Florfenicol were 10% and 20%. All isolated pathogenic E. coli strains showed resistence to Thiamphenical, Doxycycline, Enrofloxacin, Norfloxacin, Ciprofloxacin, Streptomycin, Amoxicillin, Ampicillin and Oxytetracycline.

Key words: Key words：chicken; E. coli; isolation; identification; drug- sensitivity test