Teolost species, both in juvenile and larval stages, require taurine as an essential amino acid (Salze & Allen Davis, 2015). Physiological and metabolic functions in fish, such as anti-oxidation process, immunomodulation, growth and osmoregulation, necessitate taurine (Salze et al., 2018). Taurine is abundant in live or natural food used in the seed production of aquatic species and is considered a conditionally essential nutrient in feed for various cultured species (Takeuchi, 2014).Dietary taurine supplementation is necessary while replacing the fish meal with plant-based proteins in the diet (Gaylord et al., 2007;Lunger et al., 2007). For example, 0.2% taurine in a formulated diet containing 25% soy protein concentrate improved the growth of common dentex, Dentex dentex weighing 39 g (Chatzifotis et al., 2008). Moreover, Japanese flounder, Paralichthys olivaceus, weighing 0.9 g required 1.4% taurine in diets for optimum growth (Park et al., 2002). Similarly, white seabass, Atractoscion nobilis, weighing 0.4 g required 0.99% dietary taurine (Jirsa et al., 2014), while the yellowtail, Seriola lalandi, weighing 470 g necessitated taurine for normal growth performance and physiological condition when fed a diet consisting of soy protein concentrate (Takagi et al., 2008).When the diet is deficient in taurine, poor growth, reduced survival, presence of physiological abnormalities and high mortality linked to compromised immune system of the fish have been observed (Salze & Allen Davis, 2015). Albeit the effects of taurine and
