Effects of mannan oligosaccharides and fructooligosaccharides on the growth and nonspecific immune responses of juvenile freshwater prawn Macrobrachium acanthurus

The freshwater prawn Macrobrachium acanthurus represents a valuable resource for fishermen's communities in Mexico, although the information of its culture conditions and nutrition is still scarce. Prebiotics are defined as non-digestible components that metabolized by specific health-promoting bacteria host's digestive system, improving health status growth performance cultured aquatic organisms. Fructooligosaccharides (FOS) mannan oligosaccharides (MOS) among most used prebiotics aquaculture. present work aimed to determine effects dietary FOS MOS performance, immune responses, sexual maturity juvenile acanthurus. Juveniles (0.06 ± 0.001 g) were fed with diets supplemented 3 g kg-1 diet commercial 80 days. At end feeding trial, following indices calculated: weight gain, rate, feed conversion efficiency, well superoxide dismutase lysozyme activities hepatopancreas tissue. survival, juveniles' protein contents did no show significant differences groups. No detected experimental Around day 60 females maturated, several them carrying eggs. It seems might have role maturation, but further research necessary establish if influences early maturation M.