Fig. 6

Metabolomic profiling of plasma in MS and L × Y sows. A–B Heat maps of ion signal intensity including positive and negative ion modes, respectively. C–D PCA plots based on the ion signal intensity of positive and negative ion modes, respectively. E KEGG pathway enrichment analysis for the different metabolites in plasma. F The concentrations of SCFAs including acetate, propionate, butyrate, valerate, isobutyrate and isovalerate in plasma. ^*P < 0.05, ^**P < 0.01, ^***P < 0.001, data were shown as means ± SEM; n = 7