Serum concentrations of free amino acids from mice fed either NPD or Emb-LPD at day 2.5, 3.5 or 4.5 of pregnancy.

Values shown with SEM. Differences between diet treatment at individual time points represented by * = P13.5 days NPD: n = 14 for Alanine, Threonine, essential, non-essential and total amino acids.所有数值均以标准误（SEM）呈现。不同饮食处理组在各时间点的组间差异以*标注；针对妊娠13.5天的正常妊娠饮食组（NPD），丙氨酸、苏氨酸、必需氨基酸、非必需氨基酸及总氨基酸的样本量均为14。