@article{oai:ir.kagoshima-u.ac.jp:00008188, author = {TESHIMA, Shin-ichi and KANAZAWA, Akio and UCHIYAMA, Yoshihiro}, issue = {1}, journal = {南海研紀要}, month = {2016-10-28}, note = {Feeding trials using purified diets, designed as 2-way layout experiments, were conducted to examine the effects of dietary protein (casein), lipid (a 1 to 1 mixture of soybean oil and pollack liver oil), and digestible carbohydrate (dextrin) on the growth of Tilapia nilotica in terms of weight gain, feed conversion efficiency, and protein efficiency ratios. Tilapia fingerlings grew best on diets containing 40% protein, 12% lipid and 30% digestible carbohydrate. When the dietary lipid level was fixed at 10%, good growth was obtained with 30% protein + 40% digestible carbohydrate, 40% protein + 30% digestible carbohydrate, and 30% protein + 30% digestible carbohydrate. The optimum digestible energy for T.nilotica was around 380-410 kcal/100g diet. It also seems likely that T.nilotica utilizes lipids more effectively than digestible carbohydrates as energy sources when receiving the 35% protein-diets which meet the protein requirement. These results indicate that T.nilotica fingerlings grow optimally on deits containing 30-40% protein, 12-15% lipids, and 30-40% digestible carbohydrate.}, pages = {56--71}, title = {Effects of Dietary Protein, Lipid, and Digestible Carbohydrate Levels on the Weight Gain, Feed Conversion Efficiency, and Protein Efficiency Ratio of Tilapia nilotica}, volume = {6}, year = {} }