“A total of 28 metabolites were identified … lysine, linoleic acid, 3-hydroxybutyric acid, prostaglandin F2a , taurocholic acid, LysoPC(15:0), l-carnitine, glucose, arginine, citric acid, corticosterone, ornithine, tryptophan, arachidonic acid, … with 13 metabolic pathways, such as linoleic acid metabolism, starch, and sucrose metabolism, arachidonic acid metabolism, alanine , aspartate ….”