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Research article - Peer-reviewed, 2008

Investigation of Chlamydophila spp. in dairy cows with reproductive disorders

Godin, Ann-Charlotte; Bjorkman, Camilla; Englund, Stina; Johansson, Karl-Erik; Niskanen, Rauni; Alenius, Stefan

Abstract

Background: Reports worldwide indicate high prevalence of Chlamydophila spp. infection in cattle. To assess the prevalence in Sweden, 525 cows in 70 dairy herds with reproductive disorders was investigated. Methods: To detect antibodies two commercially available kits were used. Moreover, 107 specimens, including vaginal swabs, organ tissues and milk were analysed by Polymerase Chain Reaction (PCR).Results: Two (0.4%) cows were seropositive in the Pourquier Cp. abortus ELISA. The seroprevalence with the Chekit ELISA was 28% with no difference between cases and controls. Five specimens were positive in real-time PCR and further analysed by nested PCR. Cp. pecorum was confirmed by partial omp1 DNA sequencing of the nested PCR product of vaginal swabs from control cows.Conclusion: The results suggest that Cp. abortus infection is absent or rare in Swedish cows whereas Cp. pecorum is probably more spread. They also suggest that Chlamydophila spp. are not related to reproduction disorders in Swedish cattle.

Published in

Acta Veterinaria Scandinavica
2008, Volume: 50, article number: 39
Publisher: BIOMED CENTRAL LTD