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Dietary supplementation with products of Citrus reticulata "Chachi" for improving the fecal microbiome of weaned piglets

By Huafeng Lin, Gang Li, Haizhen Wang, Lili Li, Xun Chen, Lei Shi, Yong Tang, Yanlei Chang, Jie Yang, Yuqi Liu, Hanyue Gong

Posted 14 Apr 2020
bioRxiv DOI: 10.1101/2020.04.14.040881

Nutritional interventions play a critical role in modifying the intestinal microbiome of host animals. This study was conducted to interrogate the physiological effects on fecal microflora of weaned piglets via the dietary supplemented with two types of products of Citrus reticulata "Chachi", respectively. For this purpose, A total of 72 piglets with uniform sizes were randomly assigned to four dietary treatment groups consisted of a negative control group (NCG), a fermented citrus reticulata "Chachi" pulp group (FCRPG), a Citri Reticulatae Pericarpium group (CRPG) and a positive control group (PCG) in a 21-day feeding trial. After the raising experiment, fresh feces of piglets were analyzed systematically using multi-omics technologies. Metagenomics method with high-throughput compositional characterization indicated that the architecture and diversity of fecal microbiome were both influenced by these two additives and compound antibiotics. Metabolite analysis showed that FCRPG have an significant effects on fecal short-chain fatty acids (SCFAs) among four treatment groups. Results of functional proteomics approaches found that FCRPG presented the highest butyrate metabolic level, and CRPG showed the highest flavone and flavonol biosynthesis level in feces. In addition, NCP produced an effective effect on adjusting fecal microbiome proflie. Consequently, our findings demonstrate that dietary supplementation with FCRP or CRP modulates the microbial taxa, metabolic and proteomic alterations in fecal microbiota of weaned piglets for health maintaining. ### Competing Interest Statement

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