Effect of pregnancy and postpartum on plasma (A) and liver (B) concentrations of DHA in total lipids, PC, PE, and TAG fractions. Time points (mean ± SD, n = 6 for each point) with different letters are significantly different within a lipid fraction (P < 0.05) by Bonferroni post hoc after significant F-value by repeated measures ANOVA. d, days; preg, pregnancy; pp, postpartum.