z-logo
open-access-imgOpen Access
Dietary taurine improved growth performance, nutrient utilization, and antioxidant enzyme activities in pangasius Pangasianodon hypophthalmus
Author(s) -
Peter Nikhila,
Pradhan Chiranjiv,
Dileep Namitha,
Musharraf Mohammad,
Thazhakot Vasunambisan Sankar
Publication year - 2022
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/jwas.12778
Subject(s) - taurine , biology , protein efficiency ratio , weight gain , casein , feed conversion ratio , zoology , food science , catalase , superoxide dismutase , nutrient , antioxidant , biochemistry , body weight , amino acid , endocrinology , ecology
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 analysis based on weight gain and nutrient utilization against dietary taurine.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.
Having issues? You can contact us here