Additional file 1 of Metabolomics, network pharmacology, and microbiome analyses uncover the mechanisms of the Chinese herbal formula for the improvement of meat quality in spent hens

Additional file 1: Table S1. Ingredients and nutrient composition of the conventional diet. Table S2. Specific primers for real-time PCR analysis. Table S3. The compounds of four Chinese herbs. Table S4. The targets of four Chinese herbs. Fig. S1. Fatty acid (A–C) and amino acid (D–F) distribution in breast muscle of spent hens. Fig. S2. Protein-protein interaction of potential targets. Fig. S3. The α- and β-diversity indices of cecal microbiota of spent hens. Fig. S4. The Firmicutes/Bacteroidetes ratio of cecal microbiota of spent hens.