Corn distillers dried grains with solubles (cDDGS) is a by-product of the ethanol industry. During the fermentation process
starch in the corn grain is converted into ethanol andCO2,with the cDDGS consequently having increased levels of non-starch
polysaccharides (NSP), protein and fat Xylan is the predominant component of
NSP in cDDGS Based on the reported results, cDDGS is an acceptable ingredient in poultry
diets and can be safely fed at 60 g/kg in starter broiler diets, and at 120–150 g/kg in grower–finisher broiler diets
Historically, xylanase has been widely used to reduce the anti-nutritional effects of NSP and improve the nutritional
values of energy and protein in wheat-based diets Nowadays, xylanase is used increasingly in corn-based
diets sometimes in combination with other enzyme activities. However, there are few reports on the effects
of different levels of cDDGS with xylanase addition on growth performance and digestibility of diet components in broilers
fed corn-based diets. Therefore, the objective of this study was to investigate the effects of cDDGS and microbial xylanase
on growth performance and digestibility of diet components in broilers fed corn-based diets from 1 to 42 days of age.