Dietary taurine improved growth performance, nutrient utilization, and antioxidant enzyme activities in pangasius Pangasianodon hypophthalmus

Abstract

Taurine is a β sulphonic amino acid and is conditionally essential for many fish species. In the present study, the effect of dietary taurine (tau) on Pangasianodon hypophthalmus fry (initial mean weight 0.8 ± 0.6 g) was evaluated by feeding six isonitrogenous (370 g/kg crude protein) and isolipidic (100 g/kg crude lipid) casein-based purified diets with graded levels of tau at 0 (basal diet), 5, 10, 15, 20, and 25 g/kg feed. Fish were randomly stocked in triplicate groups in 100 L plastic tubs and fed to apparent satiation over two feedings at 10.00 and 16.00 hr daily for 45 days.Final weight, weight gain, specific growth rate, and protein efficiency ratio improved significantly (p < .05) with increasing dietary tau up to 15 g/kg feed and plateaued thereafter.Whole-body protein content did not change beyond tau 15 g/kg feed, but carcass lipid content significantly (p < .05) decreased. The group of fish fed with tau 25 g/kg feed exhibited significantly higher (p < .05) superoxide dismutase, catalase, and glutathione s-transferase activity.According to the findings of this study, the optimum dietary tau content in P. hypophthalmus fry feed was estimated to be 15.05-16.31 g/kg feed as per the broken-line regression

Integrative Application of Transcriptomics and Metabolomics Provides Insights into Unsynchronized Growth in Sea Cucumber (Stichopus monotuberculatus)

“…Taurine is a β-sulfur amino acid that may act as an antioxidant in living organisms [ 70 , 71 ]. In different experimental systems, taurine has been shown to act as a direct antioxidant with a scavenging effect on oxygen-free radicals and as an antioxidant to prevent changes in ion transport and membrane permeability due to oxidant damage [ 72 ].…”

Dietary effect of soybean lecithin on the growth performance, digestive enzyme activity, blood biomarkers, and antioxidative status of striped catfish, Pangasianodon hypophthalmus

“…In order to have feasible productivity and profit, their nutritional needs must be met [ 5 ]. Thus, more efforts are still recommended to ensure the nutritional requirements of striped catfish [ 6 ]. Under the current circumstances of the high cost of ingredients which limit the profitability of finfish farming, it becomes necessary to formulate high-quality feeds with reasonable prices without affecting the nutritional value of fish feeds [ 7 – 9 ].…”