Fatima Syeda Afshan, Gonuguntla Hariprasad Naidu, Muthappa Ponnanna Nadikerianda, Sarangi Laxmi Narayan
National Dairy Development Board Research and Development Laboratory, National Dairy Development Board, IIL Campus, Gachibowli, Hyderabad, Telangana 500032 India.
J Parasit Dis. 2024 Sep;48(3):450-459. doi: 10.1007/s12639-024-01673-3. Epub 2024 May 24.
Tick-borne pathogens pose a significant global threat, causing substantial economic losses to the dairy industry. In India, tropical theileriosis, anaplasmosis, babesiosis, and trypanosomiasis are major hemo-parasitic diseases affecting bovines. A cross-sectional study was conducted to determine the prevalence of hemo-parasites in different farms in India. PCR assays were employed to detect carrier status, using gene targets and for and species, respectively. Out of the 578 apparently healthy animals screened, 30.45% (95% CI: 26.84-34.32%) were infected with at least one hemo-parasite. Cattle showed an overall positivity of 32.87%, while buffaloes had a prevalence of 15.19%, which was statistically significant ( < 0.001). Interestingly, prevalence was higher in indigenous cattle (47.81%) compared to cross-breeds (25.53%) and exotics (14.62%), with a statistically significant difference ( < 0.001). The prevalence of hemo-parasites varied widely among the farms, ranging from 5.77 to 100%. was the most prevalent parasite (23.70% of animals), followed by (13.67%), species (1.90%), and species (1.56%). Enzootic instability was observed in six of the eight farms, indicating a potential for future outbreaks. Co-infection was detected in 60 out of 176 animals positive for hemo-parasites, with 59 animals co-infected with and , and only one cross-breed cattle infected with both and . The findings highlight the prevalence of hemo-parasites in farms, underscoring the need for whole-herd screening, treatment of infected animals, and improvement in farm management practices to prevent production losses caused by these pathogens.
The online version contains supplementary material available at 10.1007/s12639-024-01673-3.
蜱传病原体对全球构成重大威胁，给乳制品行业造成巨大经济损失。在印度，热带泰勒虫病、无形体病、巴贝斯虫病和锥虫病是影响牛群的主要血液寄生虫病。开展了一项横断面研究，以确定印度不同农场血液寄生虫的流行情况。采用聚合酶链反应（PCR）检测方法，分别使用针对 和 物种以及 的基因靶点来检测携带状态。在筛查的578头看似健康的动物中，30.45%（95%置信区间：26.84 - 34.32%）感染了至少一种血液寄生虫。牛的总体阳性率为32.87%，而水牛的流行率为15.19%，差异具有统计学意义（ < 0.001）。有趣的是，本地牛的流行率（47.81%）高于杂交牛（25.53%）和外来品种牛（14.62%），差异具有统计学意义（ < 0.001）。不同农场血液寄生虫的流行率差异很大，范围从5.77%到100%。 是最常见的寄生虫（占动物的23.70%），其次是 （13.67%）、 物种（1.90%）和 物种（1.56%）。在八个农场中的六个观察到地方病不稳定，表明未来有爆发的可能性。在176头血液寄生虫检测呈阳性的动物中，有60头检测到合并感染，其中59头同时感染了 和 ，只有一头杂交牛同时感染了 和 。研究结果突出了农场中血液寄生虫的流行情况，强调了对整个牛群进行筛查、治疗感染动物以及改善农场管理措施以防止这些病原体造成生产损失的必要性。
在线版本包含可在10.1007/s12639 - 024 - 01673 - 3获取的补充材料。
