Summed serum signal intensities (mean ± SEM) of total A) NEFA, esterified fatty acids, and %NEFA (proportion of esterified FA on total FA, B) phosphatidylcholine, unsaturated TAG, and phosphatidylinositols, C) very long-chain SFA and N3-PUFA, and long-chain MUFA, and D) UFA-containing LPC, LPE, and cholesteryl esters in serum of MastitisPost (n=8) and Control (n=9) cows at 21, 14, 7, and 0 days before calving. Asterisks indicate significant (p ≤ 0.05) group differences between MastitisPost and Control cows using Wilcoxon rank sum test.