Figure 1

Quantitative concentration (targeted) and relative abundance (untargeted) of glucose, serine, isoleucine, phenylalanine, tyrosine, methionine, and lysine in the artery and vein. Note: all targeted analyses showed significant differences between the artery and vein within the alfalfa hay (AH) and rice straw (RS) diet (P < 0.001). The error bars indicate the standard error.