African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5233

Full Length Research Paper

Seroprevalence of Chlamydia infection in dairy cattle in subtropical southern China

Qing-You Liu1,2, Min-Jun Xu1*, Jing-Hua Fu1, 3, Xian-Hui He1, 4, De-Shun Shi3, Kui-Qing Cui3, Shang-Song Guan1 and Ya-Nan Wang4
1State Key Laboratory of Veterinary Etiological Biology, Lanzhou Veterinary Research Institute, CAAS, Lanzhou, Gansu Province 730046, People’s Republic of China. 2Animal Reproduction Institute, Guangxi Key Laboratory of Subtropical Bioresource Conservation and Utilization, Guangxi University, Nanning, Guangxi Zhuang Autonomous Region 530005, People’s Republic of China. 3College of Animal Sciences, South China Agricultural University, Guangzhou, Guangdong Province 510642, People’s Republic of China. 4College of Veterinary Medicine, South China Agricultural University, Guangzhou, Guangdong Province 510642, People’s Republic of China.
Email: [email protected]

  •  Accepted: 29 March 2013
  •  Published: 07 May 2013

Abstract

A total of 875 serum samples from dairy cattle in six districts in Zhuang Autonomous Region (GZAR) were collected between June 2009 to March 2010, and Chlamydiaantibodies were assayed by indirect hemagglutination test (IHA). The overall seroprevalence of Chlamydia in dairy cattle was 17.83% (156/875) in GZAR. The seroprevalence of Chlamydia in aborting dairy cattle (18.18%) was higher than that in non-aborting dairy cattle (16.69%) (not statistically significant). Dairy cattle of seven year old had the highest seroprevalence (35.42%), and dairy cattle with seven calves had the highest positive level (100%, 1/1). Statistically significant differences were observed between Chlamydia prevalence and ages (P<0.05), especially in dairy cattle of 5 to 7 year old (P<0.01). Moreover, statistically marked differences were also found betweenChlamydia prevalence and numbers of pregnancies (P<0.01). These results indicated that infection of Chlamydia in dairy cattle is widespread in GZAR and is closely related to abortion of dairy cattle, therefore integrated strategies should be carried out to prevent the outbreak of Chlamydia infection.

 

Key words: Chlamydia, seroprevalence, dairy cattle, Southern China, indirect hemagglutination assay (IHA).