Aricha Han, Simujide Huasai, Wang Chunjie, Zhang Jian, Lv Wenting, Jimisi Xirnud, Liu Bo, Chen Hao, Zhang Chen, He Lina, Cui Yinxue, Gao Ruijuan, Aorigele Chen
College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China.
College of Veterinary Medicine, Inner Mongolia Agricultural University, Hohhot 010018, China.
Animals (Basel). 2021 Jun 29;11(7):1938. doi: 10.3390/ani11071938.
Mongolian cattle from China have strong adaptability and disease resistance. We aimed to compare the gut microbiota community structure and diversity in grazing Mongolian cattle from different regions in Inner Mongolia and to elucidate the influence of geographical factors on the intestinal microbial community structure. We used high throughput 16S rRNA sequencing to analyze the fecal microbial community and diversity in samples from 60 grazing Mongolian cattle from Hulunbuir Grassland, Xilingol Grassland, and Alxa Desert. A total of 2,720,545 high-quality reads and sequences that were 1,117,505,301 bp long were obtained. Alpha diversity among the three groups showed that the gut microbial diversity in Mongolian cattle in the grasslands was significantly higher than that in the desert. The dominant phyla were and , whereas presented the highest abundance in the gut of cattle in the Alxa Desert. The gut bacterial communities in cattle from the grasslands versus the Alxa Desert were distinctive, and those from the grasslands were closely clustered. Community composition analysis revealed significant differences in species diversity and richness. Overall, the composition of the gut microbiota in Mongolian cattle is affected by geographical factors. Gut microbiota may play important roles in the geographical adaptations of Mongolian cattle.
中国蒙古牛具有很强的适应性和抗病能力。我们旨在比较内蒙古不同地区放牧蒙古牛的肠道微生物群落结构和多样性，并阐明地理因素对肠道微生物群落结构的影响。我们使用高通量16S rRNA测序分析了来自呼伦贝尔草原、锡林郭勒草原和阿拉善沙漠的60头放牧蒙古牛粪便样本中的微生物群落和多样性。共获得2,720,545条高质量 reads，序列长度为1,117,505,301 bp。三组间的α多样性表明，草原地区蒙古牛的肠道微生物多样性显著高于沙漠地区。优势菌门为 和 ，而 在阿拉善沙漠牛的肠道中丰度最高。草原牛与阿拉善沙漠牛的肠道细菌群落不同，草原牛的群落紧密聚类。群落组成分析显示物种多样性和丰富度存在显著差异。总体而言，蒙古牛肠道微生物群的组成受地理因素影响。肠道微生物群可能在蒙古牛的地理适应性中发挥重要作用。
