effects of dietary mixture of prebiotic mannan oligosacharide (mos) and β-glucan on growth performance, survival rate and body composition of juvenile grass carp (ctenopharyngodon idella)

effect of dietary mixture of prebiotic mannan oligosaccharide (mos) and β-1,3glucan, on growth performance, survival and body composition in grass carp juvenile (ctenopharyngodon idella) were investigated for 56 days. practical diets were supplemented with 0, 0.5, 1.5, 2.5 and 3.5 g/kg mixture of mos and β-1,3glucan in a totally randomized design trial in triplicate groups. the experiment carried out in 15 fiberglass tanks which filled with 1400 lit water. 50 grass carp juveniles with initial average weight 12.54 ± 0.42g were stocked and fed up to satisfy. as the results no significant differences in body composition or growth performance were observed between treatments and control (p>0.05).the experiment indicated that dietary mixture of prebiotic mannan oligosaccharide (mos) and β-1,3glucan has not benefit effects on juvenile grass carps.