6Friesen O D, Guenter W, Marrquardt R R. The effect of enzyme supplementation on the apparent metabolizable energy and nutrient digestibilities of wheat, barely, oats, and rye for the young broiler chick[J]. Pouhry Science, 1992.
7Sanna S, Marianne H, Anette M. Enzyme supplementation of wheat - based diets for broilers 2. Effect on apparent metabolisable energy content and nutriem digestibility [ J ]. Animal Feed Science and Technology, 1998, 75( 1 ).
8Ciftci I, Yenice E, Eleroglu H. Use of triticale alone and in combination with wheat or maize: effects of diets type and enzyme supplementation on hen performance, egg quality, organ weights, intestinal viscosity and digestive system.characteristics [J]. Animal Feed Science and Technology, 2003.
9Pan C F, Igbasan F A, Guenter W. The effects of enzyme and inorganic phosphorus supplements in wheat - and rye - diets on laying hen performance, energy, and phosphorus availability [J]. Poultry Science, 1998, 77(1).
10Choct M, Annison G. The Inhibition of Nutrients Digestion by Wheatpentesans[J]. British Poultry Science, 1992(b), 67:123 - 132.