UTILIZATION OF PROTEIN-RICH ETHANOL COPRODUCTS FROM CORN IN TILAPIA FEED

Corn distiller's grains with solubles (CDGS), which is the residue fro m ethanol fermentation of corn, were incorporated in tilapia (a warm-w ater fish) diets that contained either 36% protein without fish meal o r 32% protein with and without fish meal. A 103-day feeding study indi cated that the three diets containing CDGS resulted in higher weights of tilapia than fish fed a commercial fish feed containing 36% protein and fish meal. The difference in weight gains between 32 and 36% prot ein diets was not significant. Incorporating fish meal (6%) in diet ha d no advantage over a diet without fish meal.