Fig. 6

BCRP and MRP4 protein expression in the liver, kidney, jejunum, and ileum of chickens in different treatment groups, as determined by western blotting. NC: control group; SD: sulfonamide-supplemented group; FM: fish meal group; IU: injection uric acid group. a: Protein expression of BCRP and MRP4 in the liver; b: protein expression of BCRP and MRP4 in the kidney; c: protein expression of BCRP and MRP4 in the jejunum; d: protein expression of BCRP and MRP4 in the ileum. The protein relative expression levels were normalized to the average level of the control group. All data are means ± SE, ^*P < 0.05, ^**P < 0.01 compared with the NC group; N = 3 samples per treatment