نویسندگان
1 گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان ، صندوق پستی: 487-49175
2 گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان ، صندوق پستی:487-49175
3 گروه شیلات، دانشکده شیلات و محیط زیست، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، صندوق پستی: 487-49175
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
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<0.05). The results of this study show that chitosan in level 2 gr can be promote white blood cell and the level of 1 gr can be effective in improving feed conversion ratio on Caspian kutum fingerlings.
کلیدواژهها [English]