文献类型： 外文期刊
作者： Guo, Yanan 1 ; Mao, Yanni 2 ; Zhao, Shuqiang 3 ; Yang, Fei 1 ; Yu, Youli 1 ; Chen, Chong 4 ; Yang, Mengmeng 5 ; Wang, Jiandong 1 ;
作者机构： 1.Ningxia Acad Agr & Forestry Sci, Inst Anim Sci, Yinchuan, Ningxia, Peoples R China
2.Ningxia Acad Agr & Forestry Sci, Guyuan Branch, Guyuan, Ningxia, Peoples R China
3.Zhumadian Anim Dis Prevent & Quarantine Ctr, Zhumadian, Henan, Peoples R China
4.Yangzhou Univ, Inst Agr Sci & Technol Dev, Joint Int Res Lab Agr & Agriprod Safety, Minist Educ China, Yangzhou, Peoples R China
5.Ningxia Med Univ, Sch Basic Med, Yinchuan, Ningxia, Peoples R China
关键词： bioaerosols; bacterial diversity; 16S rRNA gene sequencing; cattle barns; core microbiome
期刊名称：FRONTIERS IN VETERINARY SCIENCE （ 影响因子：2.9； 五年影响因子：3.3 ）
ISSN：
年卷期： 2025 年 12 卷
页码：
收录情况： SCI
摘要： Introduction Beef cattle farming, a key industry in Ningxia Hui Autonomous Region, has intensified, raising public health concerns due to bioaerosol emissions. However, the distribution characteristics of these bioaerosols remain poorly understood. Methods We characterized bacterial communities in bioaerosols from beef cattle pens across five Ningxia regions-Guyuan (G), Yinchuan (Y), Shizuishan (S), Zhongwei (Z), and Wuzhong (W)-and compared two rearing scales: smallholder farms (S) and large-scale farms (L). Using filter membrane sampling and 16S rRNA gene sequencing, we analyzed bacterial abundance and diversity. Results and Discussion Regional differences significantly influenced bacterial abundance (p < 0.05), whereas rearing scales had minimal impact. We identified 45,486 operational taxonomic units (OTUs), of which 423 were shared across all samples, constituting a core microbiome that accounted for 46% of total sequences. Co-occurrence network analysis revealed greater microbial interaction complexity in regionally distinct samples. Our results elucidate the distribution of bioaerosol-borne microbial communities in cattle farms, highlighting potential transmission pathways of airborne microorganisms and informing strategies to mitigate exposure risks for livestock and workers.
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