Aquaculture America 2020

February 9 - 12, 2020

Honolulu, Hawaii

DIETARY TAURINE SUPPLEMENTATION IMPROVES GROWTH, BODY COMPOSITION AND ANTI-OXIDANT ENZYME ACTIVITIES OF GRASS CARP Ctenopharyngodon idella

Noor Khan ,  Ayesha Qadeer , Mahroze Fatima
Department of Fisheries and Aquaculture, University of Veterinary and Animal Sciences, Lahore, Pakistan
 

Taurine is a non‐protein amino acid  which is  necessary for  various biological processes including anti-oxidative property and detoxification .  To evaluate the effect of  dietary  taurine on growth performance, body composition and antioxidant enzyme activities of grass carp , an experiment al trail  of 60 days was conducted . Four experimental diets  were made containing 0, 6, 12 and 24 g/kg of taurine. The fingerlings were fed twice daily in triplicates while keeping water quality parameters constant.  The supplementation of taurine significantly improved the performance of growth and antioxidant enzym e activities in fish .  A significant improvement in the absolute growt h, weight gain % (WG %), feed conversion ratio  (FCR)  and s pecific growth rate (SGR) was  observed (p>0.05) while the feed intake and rate of survival showed non- significant results. The hepatosomatic index (HSI) , viscerosomatic index (VSI), superoxide dismutase (SOD) , catalase and glutathione peroxide (GPX) activity in the liver of grass carp fingerlings was  also enhanced  significantly. Among  body  proximate composition,  the crude protein, crude fat and crude ash showed non-significant results while moisture was significantly affected . Hence, i t was concluded that taurine supplementation in the diet improves the growth performance and antioxidant status  of grass carp without effecting quality of fillets.

Keywords: Body indices, SOD, glutathione peroxide, catalase, feed efficiency