A 16S RNA Analysis of Yangzhou Geese with Varying Body Weights: Gut Microbial Difference and Its Correlation with Body Weight Parameters.

At the phylum level, the Firmicutes / Bacteroidetes ratio in the large body weight group was approximately 20% higher than that in the small body weight group, with Bacteroidetes and Firmicutes exhibiting a highly significant negative correlation.

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The results indicated significant differences in the total OTUs and Chao1 indices between the intestinal microbiota of the two groups ( p < 0.05), and no significant differences were observed in the Shannon and Simpson indices, suggesting substantial differences in abundance distribution and quantity between the two groups, with relatively minor differences in microbial diversity that did not reach statistical significance ( Figure 3 A).

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