Effects of defatted soybean protein levels on growth performance and nitrogen and phosphorus excretion in Asian seabass (Lates calcarifer)

The results of the present study indicated that soybean meal can replace fish meal at the level of 10% of fish meal protein in diets for Asian seabass with good growth and feed utilization. In addition, replacing fish meal with soybean meal at the stated levels resulted in a reduction of nitrogenous waste in comparison with trash fish.