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Composition,function,and timing:exploring the early‑life gut microbiota in piglets for probiotic interventions

Journal of Animal Science and Biotechnology 2024年第2期15卷 659-678页

作者： Jianping Quan Cineng Xu Donglin Ruan Yong Ye Yibin Qiu Jie Wu Shenping Zhou Menghao Luan Xiang Zhao Yue Chen Danyang Lin Ying Sun Jifei Yang Enqin Zheng Gengyuan Cai Zhenfang Wu Jie Yang College of Animal Science and National Engineering Research Center for Breeding Swine Industry South China Agricultural UniversityGuangzhouGuangdongPeople’s Republic of China Guangdong Provincial Key Laboratory of Agro‑Animal Genomics and Molecular Breeding South China Agricultural UniversityGuangzhouGuangdongChina Yunfu Subcenter of Guangdong Laboratory for Lingnan Modern Agriculture YunfuGuangdongChina National Engineering Research Center for Breeding Swine Industry Wens Foodstuff Group Co.Ltd.YunfuGuangdongPeople’s Republic of China

Background The establishment of a robust gut microbiota in piglets during their early developmental stage holds the potential for long-term advantageous ***,the optimal timeframe for introducing probiotics to achieve this outcome remains *** In the context of this investigation,we conducted a longitudinal assessment of the fecal microbiota of 63 piglets at three distinct pre-weaning time ***,we gathered vaginal and fecal samples from 23 *** 16S rRNA gene and metagenomic sequencing methodologies,we conducted a comprehensive analysis of the fluctuation patterns in microbial composition,functional capacity,interaction networks,and colonization resistance within the gut microbiota of *** the piglets progressed in age,discernible modifications in intestinal microbial diversity,composition,and function were observed.A source-tracking analysis unveiled the pivotal role of fecal and vaginal microbiota derived from sows in populating the gut microbiota of neonatal *** D21,the microbial interaction network displayed a more concise and efficient configuration,accompanied by enhanced colonization resistance relative to the other two time ***,we identified three strains of Ruminococcus *** D10 as potential candidates for improving piglets’weight gain during the weaning *** The findings of this study propose that D10 represents the most opportune juncture for the introduction of external probiotic interventions during the early stages of piglet *** investigation augments our comprehension of the microbiota dynamics in early-life of piglets and offers valuable insights for guiding forthcoming probiotic interventions.

关键词： colonization resistance Intestinal microbiota Piglet Weaning Weight gain

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