Fig. 1

Partial least squares discriminant analysis (PLS-DA) 2D score plot of the metabolites in serum (A and B) or distal colon digesta (C and D) showed separated clusters between the 10 or 20 mg/kg oligosaccharide-based polymer active substance and CAR groups on d 5 (A and C) or d 11 (B and D) post-inoculation, respectively. LOW = Control diet supplemented with 10 mg/kg of oligosaccharide-based polymer. HIGH = Control diet supplemented with 20 mg/kg of oligosaccharide-based polymer. CAR = Control diet supplemented with 50 mg/kg carbadox. Shaded areas in different colors represent in 95% confidence interval