The
study of Mehrabi et al. (2011) showed that after 60 days rainbow
trout (Oncorhynchus mykiss) fed diets containing different
levels of symbiotic (Biomin IMBO) (0.5%, 1.0% and 1.5%)
increased in body weight about 50%, 59% and 53%, respectively
and improved SGR and FCR in comparison with the
control group. Ye et al. (2011) reported that, Japanese flounder
fed diet supplemented with fructooligosaccharides (FOS)mannan oligosaccharides (MOS) and Bacillus clausii increased
WG