Fig. 5

Lipid metabolic pathway analysis based on significantly differential lipid species in NFD versus HFD A and HFD versus BBR (B). Degree of enrichment was analyzed by a rich factor, P-value and the number of lipid metabolites that enriched in each pathway. The size of bubble means the amount of significantly differential lipid species which are enriched in this pathway, and the point with different gradation of color represents the scope of P-value. The higher value of rich factor stands for the higher degree of enrichment, and the lower P-value represents the more significant degree of enrichment