FIG 9.

Correlation between key bacterial taxa and differential metabolites and their absolute abundances at 3 dpi. (a) Spearman correlations between differential metabolites and bacterial taxa calculated for the FT and NT groups (*, P < 0.05; **, P < 0.01; ***, P < 0.001). Positive correlations are labeled in pink, and negative correlations are labeled in blue. (b) CCA plot of differential metabolites and bacterial taxa for the FT and NT groups. The CCA ordination plot shows correlations between bacterial community structures and metabolite factors. Correlations between metabolite factors and key bacterial taxa are represented by the lengths and angles of arrows. (c) Correlation network analysis of the key bacterial taxa and differential metabolites for the FT and NT groups. The hexagons indicate metabolites, and the circles indicate bacterial taxa. Lines connecting each node represent Spearman correlation coefficient values. Red lines represent positive correlations, blue lines represent negative correlations, and the thickness of the edge represents the strength of the correlations. (d) Concentrations of key metabolites in cecal contents. Bars indicate means ± SD. ***, P < 0.001 (by ANOVA and Dunnett’s multiple-comparison test).