›› 2019, Vol. 46 ›› Issue (6): 1816-1824.doi: 10.16431/j.cnki.1671-7236.2019.06.030

• Basic Veterinary Medicine • Previous Articles     Next Articles

Isolation,Identification and Drug Resistance Analysis of Klebsiella pneumoniae Isolated from Yak in Sichuan

SUI Ming1,2, WANG Jingxia1, TANG Xianhua1, ZHANG Cai1, SHU Xuexiang1, YE Shaoyong2   

  1. 1. Sichuan Technology & Business College, Dujiangyan 611830, China;
    2. Ganzi Tibetan Autonomous Region Danba County, Danba 626399, China
  • Received:2018-11-26 Online:2019-06-20 Published:2019-06-19

Abstract:

In order to analyze the drug resistance of Klebsiella pneumoniae isolated from yak in Sichuan area,43 Klebsiella pneumoniae were isolated from 127 samples of lung,pharynx and nose swabs of yaks suffering from respiratory diseases in different feeding farms in Sichuan province.Microdilution broth method and PCR method were used to detect drug resistance and resistance genes of 43 strains of Klebsiella pneumoniae.The results showed that 43 strains of Klebsiella pneumoniae were resistant to ampicillin,amoxicillin,doxycycline and sulfamonomethoxine 4 drugs with a high resistance rate of 65.12% to 90.70%;The resistance rate to amikacin,florfenicol,polymyxin B and spectinomycin were 20.93% to 48.84%:And that to cefotafur,enrofloxacin,ciprofloxacin were 18.60% and 25.58%.Most isolates were multidrug resistant and 9 and 10 drug resistant strains accounted for 23.3% and 20.9%,respectively.The detection rates of blaTEM,blaSHV,sul2,sul3 and floR genes were high,ranging from 62.8% to 69.8%;The detection rates of ant(3″)-Ⅰaaph(3')-Ⅱa,aac(6')-Ⅰb,aacC2 gene were low,ranging from 7.0% to 20.9%,and blaCTX-M,Mcr-1,qnrA,qnrS,rmtB genes were not detected.In conclusion,Klebsiella pneumoniae isolates in this experiment had strong drug resistance and carried multiple drug resistance genes.And in order to better promote the development of yak breeding industry in Sichuan province,more attention should be paid to avoid the abuse of antibiotics through drug sensitivity test.

Key words: yak; Klebsiella pneumoniae; drug resistance; resistant genes

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