Effect of chitosan diet on growth performance and hematological parameters of kutum (Rutilus frisii kutum, Kamenskii, 1901) fingerlings

The present study was designed to investigate the effect of chitosan as an immune stimulating on growth and hematologic parameters in Caspian kutum (Rutilus frisii kutum) fingerlings. This research using completely randomized design consisting of levels 0 , 0/25 , 0/5 , 1 , and 2 g of chitosan per kg of Caspian kutum commercial diet was designed with three replications . Caspian kutum fingerlings weighted average 1/76 ± 0/15 g aquarium for 8 weeks with experimental diets were fed to satiety level. Measured parameters including growth parameters ( final weight , specific growth rate , condition factor and the body weight gain ) , nutritional index ( feed conversion ratio), respectively. At the end of the hematological parameters fingerlings were examined and blood was taken from the caudal peduncle fish. The results in terms of growth parameters did not show significant differences between treatments (P>0/05), but the results in terms of nutritional indicators (FCR) and hematological factor showed significant differences among treatments (P