The top 30 significantly enriched KEGG terms are shown in Additional file 15: Fig. S8C, with 3260 DEGs mainly involved in protein digestion and absorption, pancreatic secretion, IL-17 signaling pathway, influenza A, neuroactive ligand-receptor interaction, tight junctions, pathogenic Escherichia coli infection, salmonella infection, fat digestion and absorption, and retinol metabolism. Here, IL17A is linked to Salmonella Infections.