1ANNISON G. Commercial enzyme supplementation of wheatbased diets raises ileal glycanase activities and improves apparent metabolizable energy, starch and pintos -andigestibiilties in broiler chickens [ J]. Animal Feed Science and Technology, 1992,38 : 105 - 121.
2CHOCT M, HUGHES R J, BEDFORD M R. Effects of xylanase on individual bird variation, starch digestion throughout the intestine, and ileal and caecal volatile fatty acid production in chickens fed wheat [J ]. Birtish Poultry Science, 1999,40:419 - 422.
