Figure 1

Volatile fatty acid (VFA) composition in fresh chyme along the gastrointestinal tract of Nile tilapia. (a) The proportion of the two most abundant VFAs per dietary treatment averaged over the four segments of the gastrointestinal tract. (b) The main effect of probiotics supplementation on the total VFA content in fresh chyme along the gastrointestinal tract. (c) The main effect of enzyme supplementation on the total VFA content in fresh chyme along the gastrointestinal tract. Error bars indicate standard error of means; **P < 0.01. CON-CON, no enzymes or probiotics added; CON-PRO, probiotics added; ENZ-CON, enzymes added; ENZ-PRO, enzymes and probiotics added.