Abstract
Tilapias are the most important fish in aquaculture in Brazil, growing in earth ponds and fish cages. Several research groups have studied the tilapias’ requirements of energy, protein (amino acids), vitamins and minerals. In order to optimize the feed conversion ratio and reduce the surplus nitrogen and phosphorus, one must consider the values of digestibility of energy and food nutrients in the development of economically feasible diets. Due to variations in the requirements of new types of tilapia, research is necessary to develop environmentally sustainable diets which will result in economic returns by improving fish growth, feed efficiency and fillet yield. This article reviews the nutrient requirements of tilapia determined in Brazil.
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