Fig. 3From: Effects of arginine replacement with L-citrulline on the arginine/nitric oxide metabolism in chickens: An animal model without urea cycleActivity of arginine metabolizing enzymes in broilers fed arginine deficient diets supplemented with arginine or L-citrulline. (A) Plasma arginase (B) Kidney arginase (C) Liver arginase (D) Plasma ASS (E) Kidney ASS (F) Liver ASS (G) Plasma ASL (H) Kidney ASL (I) Liver ASL. PC: Positive control; NC: Negative control; NCL: Negative control + L-citrulline. Data are presented as mean ± SEM (n = 8). Data are significantly different at *P ≤ 0.05; **P < 0.01; ***P < 0.001Back to article page