数字农科院2.0

Pathogen Detection and Analysis of Non-Infectious Factors in Calf Diarrhea at a Large-Scale Dairy Farm in Wuwei City

文献类型： 外文期刊

作者： Li, Yingjian;Wang, Lei;Xu, Guowei;Zhang, Jingyan;Hanyurwumutima, Egide;Zhao, Yiduo;Li, Jinhong;Feng, Xiaowei;Zhou, Yi;Wang, Ting;Chen, Xiaoliang;Wei, Lei;Zhang, Kang;Li, Jianxi

作者机构：

关键词： calf diarrhea;pathogen detection;non-infectious factors

期刊名称： VETERINARY SCIENCES

ISSN：

年卷期： 2025 年 12 卷 12 期

页码：

收录情况： SCIE（2025版）

摘要： Given the high incidence of calf diarrhea and the limited data on pathogenic and non-infectious factors in a large-scale dairy farm in Wuwei City, this study aims to investigate the pathogens associated with summer calf diarrhea and the non-infectious risk factors in local large-scale dairy farm. It included 664 diarrheic calves (1-60 days of age, from June 2024 to May 2025), detected 5 types of enteric pathogens in 81 fecal samples collected in summer via RT-qPCR, collected data on non-infectious factors, and applied binary logistic regression and ROC analysis. The annual diarrhea incidence was 14.44%, with a peak in summer. Clostridium perfringens (67.90%) and Bovine Rotavirus (48.14%) were the dominant pathogens, and the rate of mixed infections was 48.14%. Risk factors for calf diarrhea included birth in spring or summer, female, Wagyu, younger age, birth weight < 38.5 kg, primiparous dams, serum immunoglobulin level < 8.1 g/L, and dam calving score > 1; longer duration of treatment was associated with a lower recovery rate. This study identifies key pathogens, risk factors, and their thresholds, thereby providing a scientific basis for the control of calf diarrhea in similar regions.

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