title: Nutritive value of single-screw extruded and nonextruded triticale distillers dried grains with solubles, with and without an enzyme complex, for broilers.
abstract: The nutritive value of triticale distillers dried grains with solubles (DDGS) for broilers was investigated in 2 experiments. In experiment 1, four hundred male broilers housed in battery cages were fed diets including 15 or 30% triticale DDGS (extruded or not) or a basal diet, supplemented with or without a multi-enzyme complex from d 21 to 28. Birds were killed and ileal digesta was collected on d 28 to establish the apparent ileal nutrient digestibility (AID) coefficients for both assay diets and DDGS as test ingredients based on 5 cages per diet. In experiment 2, a 42-d performance study compared growth phase-specific diets formulated to similar levels of AME, CP, and digestible lysine with graded levels (0, 5, or 10%) of triticale DDGS inclusion based on a minimum of 4 pens per diet x sex combination. Breast muscle weight and percentage yield were determined on d 37 by sampling 5 birds per pen. In experiment 1, there was a significant (P < 0.05) DDGS level of inclusion x enzyme interaction for CP, lysine, methionine, tryptophan, isoleucine, histidine, and phenylalanine, such that the AID increased with enzyme supplementation based on 15% but not 30% DDGS inclusion. At 15% DDGS inclusion, enzyme supplementation increased the AID of these nutrients in DDGS between 6 and 19 percentage units. Extrusion of triticale DDGS increased (P < 0.05) the AID of GE, CP, methionine, tryptophan, branched-chain amino acids, and phenylalanine between 3 and 8 percentage units. In experiment 2, feeding up to 10% triticale DDGS had no adverse effect on feed intake, weight gain, or feed efficiency of broilers compared with controls over the 42-d study. Feeding up to 10% triticale DDGS did not affect breast weight or yield on d 37. In conclusion, feed enzyme complex supplementation and extrusion both increased the nutritive value of triticale DDGS for broilers. Triticale DDGS can be fed at up to 10% of practical broiler diets without adverse effect on performance and breast muscle yield.
authors.affiliation: Agriculture Research Division, Alberta Agriculture and Rural Development, Edmonton, Alberta T6H5T6, Canada.
authors.forename: M
authors.initials: M
authors.lastname: Oryschak
authors.forename: D
authors.initials: D
authors.lastname: Korver
authors.forename: M
authors.initials: M
authors.lastname: Zuidhof
authors.forename: E
authors.initials: E
authors.lastname: Beltranena
mesh_terms: D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D001835:Body Weight / Q000502:physiology; D002645:Chickens / Q000254:growth & development / Q000378:metabolism*; D004063:Digestion / Q000502:physiology; D002523:Edible Grain; D005260:Female; D007082:Ileum / Q000378:metabolism*; D008297:Male; D009753:Nutritive Value; D009929:Organ Size / Q000502:physiology; D010369:Pectoralis Muscles / Q000378:metabolism; D011897:Random Allocation