奶牛群中衣原体的流行情况及感染传播的影响因素。
Prevalence of chlamydiae in dairy cattle herds and factors contributing to the spread of infections.
作者信息
Szymańska-Czerwińska Mońika, Jodełko Agnieszka, Osiński Zbigniew, Zaręba-Marchewka Kinga, Niemczuk Krzysztof
机构信息
Department of Cattle and Sheep Diseases, Puławy, Poland.
Department of Biotechnology and Nutrigenomics, Institute of Genetics and Animal Biotechnology of the Polish Academy of Sciences, 05-552 Jastrzębiec, Poland.
出版信息
J Vet Res. 2024 Dec 31;68(4):531-538. doi: 10.2478/jvetres-2024-0071. eCollection 2024 Dec.
INTRODUCTION
Different species affect cattle and contribute to economic losses. One of them, , 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 - 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 , 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.
引言
不同物种会感染牛群并造成经济损失。其中一种，是一种全球地方性流行的家畜病原体。尽管它具有地方性流行特征，但波兰目前的流行率数据仍然有限。本研究旨在深入了解波兰奶牛衣原体的流行情况。
材料与方法
首先对奶牛衣原体血清流行率进行筛查，随后进行属特异性和种特异性实时定量聚合酶链反应。从142个牛群中血清呈阳性的动物采集阴道拭子（n = 239）和胎盘样本（n = 2）以检测病原体排出情况。研究群体包括来自波兰所有省份1153个奶牛场的2780头奶牛。
结果
确定动物实际流行率为33.3%，而牛群实际流行率为42.7%。使用适当的统计工具确定了波兰省份的五组，突出了影响衣原体感染传播的各种因素可能导致的差异。唯一检测到的衣原体种类是，在两个牛群中证实了其存在。
结论
本研究表明，衣原体感染在波兰全国的奶牛中普遍存在。
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