畜牧兽医学报 ›› 2026, Vol. 57 ›› Issue (1): 392-400.doi: 10.11843/j.issn.0366-6964.2026.01.034

• 预防兽医 • 上一篇    下一篇

藏猪源产气荚膜梭菌的分离与耐药状况分析

罗润波1,2(), 吴丹3, 李可欣1,2, 钟亚男1,2, 索朗斯珠1,2, 商鹏1()   

  1. 1.西藏农牧大学动物科学学院,林芝 860000
    2.西藏农牧大学动物科学学院 农业农村部西藏包虫病防治重点实验室,林芝 860000
    3.四川农业大学动物医学院,成都 611130
  • 收稿日期:2025-03-11 出版日期:2026-01-23 发布日期:2026-01-26
  • 通讯作者: 商鹏 E-mail:runboluo@163.com;nemoshpmh@126.com
  • 作者简介:罗润波,副教授,博士生,主要从事高原动物传染病学研究,E-mai:runboluo@163.com
  • 基金资助:
    国家重点研发计划项目(2022YFD1600900);2024年中央财政支持地方高校发展改革专项资金(XK2024-02);2024年中央财政支持地方高校发展改革专项资金(YJSXK2025-21)

Isolation and Drug Resistance Analysis of Clostridium perfringens from Tibetan Pigs

LUO Runbo1,2(), WU Dan3, LI Kexin1,2, ZHONG Ya’nan1,2, SUOLANG Sizhu1,2, SHANG Peng1()   

  1. 1.College of Animal Science,Xizang Agricultural and Animal Husbandry University,Linzhi 860000,China
    2.Key Laboratory for Prevention and Control of Hydatid Disease in Xizang(Co-constructed by Ministry and Province),Ministry of Agriculture and Rural Affairs,College of Animal Science,Xizang Agricultural and Animal Husbandry University,Linzhi 860000,China
    3.College of Veterinary Medicine,Sichuan Agricultural University,Chengdu 611130,China
  • Received:2025-03-11 Online:2026-01-23 Published:2026-01-26
  • Contact: SHANG Peng E-mail:runboluo@163.com;nemoshpmh@126.com

摘要:

旨在了解西藏藏猪群中产气荚膜梭菌的流行特点及耐药情况,为防治疾病提供理论依据。本研究采用细菌分离、PCR鉴定、药敏试验、耐药基因检测等方法,对2021—2024年采集来自西藏9个区县的273头份藏猪粪便样品进行产气荚膜梭菌分离鉴定和毒素分型、耐药表型的确定。结果显示:共得到180株藏猪源产气荚膜梭菌,分离率为65.93%(180/273);经毒素基因检测均为A型产气荚膜梭菌,其中142株含有cpb2基因。抗生素药物敏感性试验结果显示:分离菌株对庆大霉素、链霉素、红霉素、多黏菌素B、磺胺甲恶唑、甲氧苄啶6种药物具有较高的耐药性。有97.22%(175/180)的分离菌为多重耐药菌株。对4~6类抗生素耐药的菌株比例占71.67%(129/180)。另外,分离菌株携带12种耐药基因,检测出率为23.08%(12/52),氨基糖苷类耐药基因aadA检测出率最高,检出率85.00%(153/180)。本研究明确了西藏藏猪源的产气荚膜梭菌流行情况,为采取有效的防控措施提供数据支持。

关键词: 藏猪, 产气荚膜梭菌, 药敏试验, 耐药基因, 流行病学调查

Abstract:

The aim of this study was to understand the epidemic characteristics and drug resistance of Clostridium perfringens in Xizang’s Tibetan pig population, and to provide theoretical basis for disease prevention and control. In this study, 273 Tibetan pig fecal samples collected from 9 districts and counties in Xizang from 2021-2024 were isolated and identified by bacterial isolation and purification, PCR identification, drug sensitivity test, and drug resistance gene detection and other methods, and the toxin typing and drug resistance phenotype were determined. The results showed that a total of 180 strains of C. perfringens from Tibetan pigs were obtained, with an isolation rate of 65.93% (180/273); According to toxin gene testing, all strains were identified as type A C. perfringens, with 142 strains containing the cpb2 gene. The results of antibiotic susceptibility tests showed that the isolated strains had high resistance to 6 drugs, including gentamicin, streptomycin, erythromycin, polymyxin B, sulfamethoxazole, trimethoprim. 97.22% (175/180) of the isolated bacteria were multidrug-resistant strains. The proportion of strains resistant to 4-6 types of antibiotics is 71.67% (129/180). In addition, the isolated strains carried 12 resistance genes, with a detection rate of 23.08%(12/52). The detection rate of the aminoglycoside resistance gene aadA was the highest, with a detection rate of 85.00%(153/180). This study clarified the prevalence of C. perfringens from Tibetan pigs in Xizang, providing data support for taking effective prevention and control measures.

Key words: Tibetan pig, Clostridium perfringens, antibiotic sensitivity test, antibiotic resistance genes, epidemiological investigation

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