Fig. 2

Changes of platelets and white blood cells relative to health 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). Lymph, lymphocytes; PMN, polymorphonuclear neutrophils; PLT, platelets; WBC, white blood cells; NLR, neutrophil-to-lymphocyte ratio; PLR, platelet-to-lymphocyte ratio. 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