SYNERGISTIC EFFECTS OF DIETARY Enterococcus faecium AND FRUCTO-OLIGOSACCHARIDE ON GROWTH IN JUVENILE NILE TILAPIA Oreochromis niloticus

An 4 -week feeding trial was conducted to  evaluate  the effects of  dietary supplementation of  enterococcus faecium  as a probiotic  and fructo-oligosaccharide  (FOS) as a prebiotic  in  juvenile N ile tilapia , Oreochromis niloticus. Fish averaging 8.09 ± 0.21g (mean±SD ) were randomly distributed into seven  groups  of rectangular 45 L tanks (20 fish/tank) with three replicates , and e ach group  of fish were fed by one of the  seven experimental diets:  A basal diet without probiotic  or prebiotic supplementation was used as control (CON), and six other diets were formulated by adding 10⁶ CFU/g E. faecium (EF₆) , 10⁷ CFU/g E. faecium (EF₇) , 10 ⁸ CFU/g E. faecium (EF₈) , 10⁶ CFU/g E. faecium + FOS (EF₆F ), 10⁷ CFU/g E. faecium + FOS (EF₇F) and 10 ⁸ CFU/g E. faecium + FOS (EF₈F) to the CON diet. G rowth performance  and other parameters  would be measured after 4 weeks of feeding trial, and the results will be presented.