Conducted with the goal of evaluate the utilization capacity of squid soluble hydrolyte and shrimp soluble hydrolyte extracts of local Muscovy ducks. It was a complete randomized design with 5 treatments corresponding to 5 diets and 3 replications. equal numbers in sex were used in one experimental unit. The treatment 1 (basic diet), Treatment 2, 3 were mixed basic and squid soluble hydrolysate with 1%, 2%, respectively (DM). The treatment 4 and 5 similarly turn but additional 1%, 2% of shrimp soluble extracts in the diet, respectively. The treatments were: CSM0, CSM1, CSM2, CST1 and CST2, respectively. The results shown that daily weight gain (DWG) was lower for the ducks without supplementing shrimp and squid hydrolyte (CSM0 treatment) than those fed shrimp and squid hydrolyte and the significantly higher result found in the CSM2, CST1 and CST2 treatments