Abstract:255 ind. with average weight 45.25 g of Pelteobagrus fulvidraco were fed respectively five experimental diets for 56 days in indoor recirculating aquaculture system,the diets containing respectively 0.5% goldenrod,0.4% carophyll red,0.5% auroxanthin,6% corn gluten meal and the control group.The tryosinase activity and the concentration of carotenoids and luteins in blood serum and skin were detected respectively.The following results are obtained.The tyrosinase activity in the serum with goldenrod group was significantly increased,while the other experimental groups had not significant difference.The total carotenoid content in the back skin with control group had decreased 11.2%,and 57.5% in abdominal skin,and lutein content was similar to these.The carotenoid content in the abdominal skin with corn gluten meal group,skin had decreased by 38.5%,and that in back skin had no significant change.The lutein content in back and abdominal skin increased to some extent.The total carotenoid content with carophyll red group decreased in the abdominal skin by 45%,and back had no significant changes in the skin.The lutein content in the abdominal skin was significantly reduced.The total carotenoid content in the back,abdominal skin of the auroxanthin group increased by 1.8 times and 1.5 times,the lutein content also increased significantly.The total carotenoid content in the back,abdominal skin of the goldenrod group increased by 1.0 fold and 0.49 fold,the lutein content also increased significantly.The results show that pigment derived from the feed may be selectively deposited by P.fulvidraco. The P.fulvidraco body color was greatly affected by the pigment material from the feed.