Based on the criterion of p < 0.05, a total of 25 pathways, including the immune-related PPAR signaling pathway, insulin resistance, and the AMPK signaling pathway, were found to be significantly enriched in the BY groups (Figure 3C), whereas 16 pathways, including the Toll-like receptor signaling pathway, Salmonella infection, and the IL-17 signaling pathway, were significantly enriched in the GM groups (Figure 3D). This evidence concerns the gene PPARA and Salmonella Infections.