TY - JOUR T1 - Performance Characteristics of Nile Tilapia (Oreochromis niloticus) Fed Diets Containing Graded Levels of Fuel-Based Distillers Dried Grains with Solubles AU - Schaeffer, T.W. AU - Brown, M.L. AU - Rosentrater, K.A. JO - Journal of Aquaculture Feed Science and Nutrition VL - 1 IS - 4 SP - 78 EP - 83 PY - 2009 DA - 2001/08/19 SN - 2070-1667 DO - joafsnu.2009.78.83 UR - https://makhillpublications.co/view-article.php?doi=joafsnu.2009.78.83 KW - DDGS KW -fuel ethanol KW -Oreochromis niloticus KW -glass aquaria KW -Nile tilapia KW -USA AB - A feeding trial was performed to investigate levels of corn-based Distillers Dried Grains with solubles (DDGS), a co-product of fuel ethanol manufacturing, used as a nutrient source for juvenile Nile tilapia (Oreochromis niloticus). Three isocaloric (15.7±0.7 MJ kg-1 dry matter), isonitrogenous (29.6±1.0% crude protein) experimental diets were formulated to contain 20, 30 and 40% DDGS; a commercial diet containing fishmeal was used as a reference diet. Glass aquaria (110 L) were stocked with Nile tilapia (mean weight = 6.7 g) with four replicates per diet. Weight gains, conversion ratios and hepatosomatic indices did not significantly differ between fish fed 20% DDGS and reference diets. Dressing percentages were similar among fish fed 20 and 30% DDGS and reference diets, while no difference occurred in protein efficiency ratios among diets. These results indicate that aquaculture diets incorporating 20% DDGS may produce similar performance results to commercial diets of similar energy content. ER -