The effect of dietary different level of A-Max Ultra Prebiotic (Yeast Culture of Saccharomyces cerevisiae) on Growth Parameters, Feed Utilization, Survival Rate andimproved stress resistance in Common Carp fry (Cyprinus carpio Linnaeus. 1758)

This experiment was conducted to evaluate the effect of A-Max Ultra prebiotic at five concentrations of 0 (control), 0.3 (T1), 0.5 (T2), 0.7(T3) and 1(T4) g.kg-1 on growth parameters, feed utilization, survival rate and resistance against the challenge tests of common carp larvae were compared for 60 days. For this purpose 600 Common carp F1 larvae with average mean weight of 1.3±0.273g and (±SD) were obtained and transferred to the laboratory. After 14 days adaptation to the laboratory conditions the fish were randomly divided into five treatments with three replicates (four experimental treatment and the control). The results revealed that, the highest of Growth parameters were observed in the diet containing 0.5 and 0.7 g.kg-1 A-Max Ultra prebiotic supplement and the highest of feed indices were observed in the diet containing 0.3 g.kg-1 prebiotic supplement that a significant difference was observed between treatments and the control treatment (P