The effect of Celmanax prebiotic and five probiotic Bacilli species on the decreasing of stress of common carp (Cyprinus carpio Linnaeus, 1758) during transportation with different salinity

One of the most important factors during transportation of fishes is stress reduction. The effects of Celmanax liquid yeast commercial perbiotic and commercial product Protexin Aquatech including a blend of five strains of probiotic bacilli (Bacillus licheniformis, B. subtilis, B. polymyxa, B. laterosporus and B. circulans) on the biochemical parameters and hematological factors of common Carp juveniles were investigated during 12 h transportation in plastic bags. During 90 days, 150 juveniles with average weight of 60.50±1.50 g were fed by diet supplemented with Celmanax perbiotic at the level of 1 ml per kg, and by diet supplemented with probiotic bacilli at concentrations of 1×106 CFU per 100 g food. Then the fish were introduced to 40 liter plastic bags in stocking density of 1 kg/m3. In this study, four treatments were performed and three replications for each treatment including control, 0. 5 g per liter salinity + Celmanax, 5 g per liter salinity + Celmanax and 0. 5 g per liter salinity + probiotic bacillitreatment. 10 fish were sampled from plastic bags and at the begining and end of experiment. There were no significant differences in values hematocrite and Hb Calcium and glucose levels in different treatments. (P>0.05). The control group had the highest levels of cortisol (P<0.05). The results showed that using Celmanax prebiotic and probiotic bacilli in long-time transportation of Common Carp (over than 12 hours), can reduce fish stress.