BWs, relative organ weights of pups, and plasma metabolites at PND21 (weaning). Relative organ weights correspond to the percentage of the BW. Values are mean ± SEM. *P < 0.05. **P < 0.01. (A) BW (grams), (B) relative brain weight, (C) relative lungs weight, (D) relative spleen weight, (E) relative thymus weight, and (F) plasma triacylglycerol concentration. BN, brain; LG, lungs; SN, spleen; TS, thymus.