Fig. 1
From: The optimal dietary arginine level of laying hens fed with low-protein diets
Effects of the dietary L-arginine level in a LP diet on the AA transporters expression. (A) Duodenum (B) Jejunum (C) Ileum. Data are shown as the mean ± SD (n = 8). a,c: Means with different superscripts within the same column differ significantly, P < 0.05