浙江农业学报 ›› 2022, Vol. 34 ›› Issue (4): 706-712.DOI: 10.3969/j.issn.1004-1524.2022.04.06

• 动物科学 • 上一篇    下一篇

四川省某奶牛场犊牛呼吸道疾病的细菌性病原qPCR检测

陈久兵1(), 耿尚景超1,2, 王方国1,2, 陈娅婷1, 周金伟3, 骆巧1, 马莉1, 姚学萍1, 余树民1, 沈留红1, 储岳峰2, 曹随忠1,*()   

  1. 1.四川农业大学 动物医学院,四川 成都 611130
    2.中国农业科学院 兰州兽医研究所,家畜疫病病原生物学国家重点实验室,甘肃 兰州730046
    3.蒲江县农业农村局,四川 蒲江 611630
  • 收稿日期:2020-10-10 出版日期:2022-04-25 发布日期:2022-04-28
  • 通讯作者: 曹随忠
  • 作者简介:*曹随忠,E-mail: suizhongcao@sicau.edu.cn
    陈久兵(1994—),男,四川广元人,硕士研究生,研究方向为动物疾病诊疗研究。E-mail: jiubingchen11@163.com
  • 基金资助:
    国家重点研发计划(2018YFD0502305);校企合作项目(002H2001)

qPCR detection of bacterial pathogens of respiratory diseases in calves of a dairy farm from Sichuan

CHEN Jiubing1(), GENGSHANG Jingchao1,2, WANG Fangguo1,2, CHEN Yating1, ZHOU Jinwei3, LUO Qiao1, MA Li1, YAO Xueping1, YU Shumin1, SHEN Liuhong1, CHU Yuefeng2, CAO Suizhong1,*()   

  1. 1. College of Veterinary Medicine, Sichuan Agricultural University, Chengdu 611130, China
    2. State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Lanzhou 730046, China
    3. Agriculture and Rural Bureau of Pujiang County, Pujiang 611630, Sichuan, China
  • Received:2020-10-10 Online:2022-04-25 Published:2022-04-28
  • Contact: CAO Suizhong

摘要:

为了解四川省某规模化奶牛养殖场犊牛呼吸道疾病(bovine respiratory disease, BRD)的病原情况,进而制定防治措施,本研究通过TaqMan荧光定量PCR方法对2019—2020年75份有呼吸道疾病症状的犊牛鼻腔棉拭子和10份其他样品进行常见细菌性病原检测。结果显示,多杀性巴氏杆菌(Pm)、睡眠嗜血杆菌(Hs)、牛支原体(Mb)、化脓隐秘杆菌(Tp)和溶血性曼氏杆菌(Mh)的检出率分别为 57.33%(43/75)、38.67%(29/75)、13.33%(10/75)、12.00%(9/75)和8.00%(6/75)。单一感染率为36.00%(27/75),主要由Pm引发,占24.00%(18/75);混合感染率为 40.00%(30/75),尤以HsPm引发的混合感染为主,占18.67%(14/75)。结果表明,5种常见BRD细菌性致病菌均有检出,且混合感染类型较多。Hs的高检出率表明其与我国BRD有一定联系,有必要在全国范围内进一步开展其流行病学调查。

关键词: 牛呼吸道疾病, TaqMan荧光定量PCR, 睡眠嗜血杆菌, 混合感染

Abstract:

In order to explore the pathogens of bovine respiratory disease(BRD) in a large-scale dairy farm in Sichuan Province, TaqMan fluorescent quantitative PCR method was used to analyze 75 nasal cotton samples from the calves with respiratory disease symptoms and 10 other samples during 2019 to 2020 for common bacterial pathogens. The results showed that the detection rates of Pasteurella multocida(Pm), Histophilus somni(Hs), Mycoplasma bovis(Mb), Trueperella pyogenes(Tp) and Mannheimia haemolytica(Mh) were 57.33%(43/75), 38.67%(29/75), 13.33%(10/75), 12.00%(9/75), 8.00%(6/75). The single infection rate was 36.00% (27/75), mainly caused by Pm, accounting for 24.00%(18/75); the mixed infection rate was 40.00%(30/75), especially the mixed infection caused by Hs and Pm, accounted for 18.67%(14/75).The results showed that all five common BRD bacterial pathogens were detected, and there were many types of mixed infections. The high detection rate of Hs indicated that it had a certain connection with BRD in China, and it was necessary to carry out further epidemiological investigations nationwide.

Key words: bovine respiratory disease, TaqMan real-time PCR, Histophilus somni, mixed infection

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