《Table 3 Body weight gain and diarrhea rate of suckling piglets》

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《口服鼠李糖乳杆菌GG影响哺乳仔猪肠道屏障功能的研究（英文）》

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The data followed by the different small letters in the same column are significantly different（P<0.05）.Diarrhea rate（%）=（number of piglets with diarrhea in seven days/total number of piglets in the group）×100%.Data are expressed as mean±SD （n=12）

The phylogenetic differences within the intestinal microbiota were assessed by principal component analysis（PCoA）（Fig.1） .L.rhamnosus treatmenthad a distinct microbiota composition that clustered separately from control diet-fed piglets.Theα-diversity（richness and evenness）of the communities was measured by Shannon，chao1，PD＿whole＿tree，observed＿species，and goods＿coverage’s indices（Table 4）.However，no significant differences were observed between the two groups.To assess specific changes in the gut microbiota，we compared the relative abundance of the phylum identified from sequencing（Fig.2）.Results showed that Firmicutes，Bacteroidetes，and Fusobacteria phyla were dominant in the control group，comprising 33.56%，35.89%，and 15.20%of the sequences，respectively；however，in L.rhamnosus group，Firmicutes percentage was dominant and the Bacteroidetes proportion was decreased.Noticeably，Fusobacteria almost disappeared in the L.rhamnosus group（Fig.2）.