Fig. 1

Changes of lipid metabolism and oxidative stress analytes in dairy cows with different somatic cell counts (SCC). -∆-, high SCC (SCC ≥ 500,000 cells ml^− 1, n = 33); -■-, middle SCC (200,000 cells ≤ SCC < 500,000 cells ml^− 1, n = 20); -○-, low SCC (SCC < 200,000 cells ml^− 1, n = 23). BHBA, β-hydroxybutyrate; GSH-Px, glutathione peroxidase; MDA, malondialdehyde; NEFA, non-esterified fatty acid; ROS, reactive oxygen species; SOD, superoxide dismutase. Hs = effect of health status; Wk = effect of sampling week; Hs * Wk = interaction effect (Hs × Wk). * Hs (P < 0.05) among three groups; **Hs (P < 0.01) among three groups. Error bars indicate SEM