“…The high cost of fish meal and concerns regarding its future availability have made it imperative for the nutritionists to reduce or eliminate the fish meal from fish and crustacean diets as a strategy to avoid any risk on the future of aquaculture industry (Muzinic et al., 2006; Brinker and Reiter, 2011; Kumar et al., 2011a; Oujifard et al., 2011). Substantial efforts have been made around the globe in evaluating the wide range of potential ingredients of plant (Mohanta et al., 2007; Nyina‐wamwiza et al., 2007; Erdogan and Olmez, 2010; Monentcham et al., 2010; Brinker and Reiter, 2011; Glencross et al., 2011; Kumar et al., 2011a,b; Oujifard et al., 2011) and animal (Guo et al., 2006; Muzinic et al., 2006; Yang et al., 2006; Yigit et al., 2006; Cavalheiro et al., 2007; Nyina‐wamwiza et al., 2007; Ahmad, 2008; Gümüş et al., 2009, 2010; Gümüş, 2011) origins. However, inclusion of plant protein above 25–50% of the total of the total diet frequently results in reduction of growth and/or high mortalities attributed to an improper balance of indispensable amino acids, a reduced digestibility of lipid and energy, the presence of antinutritional factors and/or the poor palatability (Nyina‐wamwiza et al., 2007).…”