Prevalence and relative-risks of pasteurella in yaks of Xizang, China

文献类型： 外文期刊

第一作者： Ma, Hongcai

作者： Ma, Hongcai;Wang, Dongjing;Yuan, Zhenjie;Shi, Bin;Zeng, Jiangyong;Meng, Fanxing;Zhao, Congming;Pan, Chang

作者机构：

关键词： ELISA; Pasteurella; Risk factor analysis; Seroepidemiology; Yak

期刊名称：TROPICAL ANIMAL HEALTH AND PRODUCTION （ 影响因子：1.7； 五年影响因子：1.8 ）

ISSN： 0049-4747

年卷期： 2025 年 57 卷 6 期

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收录情况： SCI

摘要： Pasteurella multocida-induced hemorrhagic septicemia is an important bacterial disease of buffaloes and cattle, especially in resource-constrained and high-altitude regions. Although its economic and health implications are of vital interest, there has not been much studied about its occurrence among yaks.Pasteurella multocida, the pathogen causing hemorrhagic septicemia in cattle, was investigated in 922 yak serum samples collected from Lhasa, Nagqu, and Shigatse regions of Xizang from 2021 to 2024. Pasteurella antibodies were detected using enzyme-linked immunosorbent assay (ELISA), and statistical analyses was performed using R software to assess association with factors such as age, gender, altitude, and feeding patterns. The overall seroprevalence was 15.71% (95% CI: 8.1-26.4), with yaks under three years at significantly higher risk (OR = 6.19, 95% CI: 1.80-28.40). These results highlight the need for improved disease management in calves and can inform prevention strategies in similar high-altitude livestock regions beyond Xizang. This study also emphasizes the need for targeted yak management strategies, including vaccination programs and improved nutritional support, especially for calves, to prevent the spread of Pasteurella infections. Implementing regular health monitoring and disease surveillance in yak populations will be essential for timely detection and effective control of outbreaks.

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