The Benefits of Exogenous Xylanase in Wheat–Soy Based Broiler Chicken Diets, Consisting of Different Soluble Non-Starch Polysaccharides Content

Four wheat-based diets with either a low soluble content of non-starch polysaccharides (NSPs, 13 g/kg); viscosity, LV) or high NSPs (33.5 g/kg; HV), and without exogenous xylanase (XYL), were fed to male Ross 308 broiler chickens from 7 21 days age. The enzyme was supplemented at 100 FXU/kg diet, its preparation based on endo-1,4-beta-xylanase produced by Aspergillus oryzae. Each diet eight pens, five birds in each pen, following randomisation. Chicks XYL had an improved feed efficiency, hepatic coenzyme Q10, caecal butyric acid concentration, nitrogen digestibility (p < 0.05) increased dietary ME 0.001). Compared HV, LV reduced weight proventriculus, gizzard the pancreas higher blood glutathione peroxidase 0.05), but no differences observed nutrient growth performance variables. This also suggests that may tolerate greater content; thus, further benefits be obtained application energy diets.