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- Title
CHLAMYDIA ABORTUS IN DAIRY CATTLE: SEROSTATUS AND RISK FACTORS IN ALGERIAN NORTHEASTERN HIGH PLATEAUS.
- Authors
Hireche, Sana; Agabou, Amir; Khalil Bounab, Brahim El
- Abstract
Chlamydia abortus is a zoonotic abortifacient bacterium causing a large variety of disorders with detrimental economic impact, mainly in ruminants. A total of 345 cows belonging to 42 herds were randomly sampled to conduct a cross-sectional study, aiming to establish the seroprevalence of this pathogen (using iELISA test) and associated risk factors in dairy cattle from Oum-El-Bouaghi and Setif provinces (Northeastern Algerian high plateaus). In the investigated samples, specific chlamydial antibodies were detectable in 58 cows (16.8%) belonging to 13 herds (30.9%). The individual animal seroprevalence ranged from 12.6% (18/143) to 19.8% (40/202) in Oum- El-Bouaghi and Setif, respectively, and the herd prevalence varied from 30% (06/20) to 31.8% (07/22). At the herd level, none of the investigated factors had an effect on chlamydial antibodies prevalence, while, at the individual animal level, associations (univariately evaluated at p<0.05) were established for herd size, deficient disinfection, origin of cows and feed. Multivariable logistic regression analysis revealed origin of cows to be protective and history of infertility as a potential risk factor in Setif only. These results are clear evidences that C. abortus is endemic in our dairy cattle population and plays a role in decreased reproductive performance.
- Subjects
DAIRY cattle; CHLAMYDIA infections; CHLAMYDIA; SEROPREVALENCE; ANIMAL herds; LOGISTIC regression analysis; COWS
- Publication
Veterinaria, 2022, Vol 71, Issue 1, p61
- ISSN
0372-6827
- Publication type
Article
- DOI
10.51607/22331360.2022.71.1.61