Fig. 7
Correlation analysis between genera (top 20 significant genera) and metabolite concentrations (based on VIP and P value) affected by the feed type. A Amino acids, peptides, and analogues. B Bile acids, alcohols and derivatives. C Linoleic acids derivatives. D Fatty acids and conjugates. Each row in the graph represents a genus, each column represents a metabolite, and each lattice represents a Person correlation coefficient between a component and a metabolite. Red represents a positive correlation, while blue represents a negative correlation. *Significant correlation between the grass group and concentrate group (P < 0.05), **Significant correlation between the grass group and concentrate group (P < 0.01), ***significant correlation between the grass group and concentrate group (P < 0.001)