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Prevalence of chlamydiae in dairy cattle herds and factors contributing to the spread of infections Cover

Prevalence of chlamydiae in dairy cattle herds and factors contributing to the spread of infections

Open Access
|Dec 2024

Abstract

Introduction

Different Chlamydia species affect cattle and contribute to economic losses. One of them, C. pecorum, is a globally endemic livestock pathogen. Despite its endemicity, prevalence data from Poland have so far been limited. The present study aimed to obtain insight into the chlamydiae prevalence in Polish dairy cattle.

Material and Methods

A screening of chlamydial seroprevalence in dairy cattle was initially performed, followed by Chlamydiaceae- and species-specific real-time qPCR. Vaginal swabs (n = 239) and placenta samples (n = 2) from seropositive animals in 142 herds were collected to detect shedders. The study population consisted of cows (n = 2,780) from dairy herds (n = 1,153) located in all Polish voivodeships.

Results

The true animal prevalence was determined to be 33.3%, while the true herd prevalence was 42.7%. Five groups of Polish voivodeships were identified using appropriate statistical tools, highlighting differences that may arise from various factors impacting the spread of chlamydial infections. The only detected chlamydia species was C. pecorum, the presence of which was confirmed in two herds.

Conclusion

This study revealed that chlamydial infections are commonly present in Polish dairy cattle across the country.

Language: English
Page range: 531 - 538
Submitted on: Sep 10, 2024
Accepted on: Dec 24, 2024
Published on: Dec 31, 2024
Published by: National Veterinary Research Institute in Pulawy
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Mońika Szymańska-Czerwińska, Agnieszka Jodełko, Zbigniew Osiński, Kinga Zaręba-Marchewka, Krzysztof Niemczuk, published by National Veterinary Research Institute in Pulawy
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.