title: Nutrient availability of different batches of wheat distillers dried grains with solubles with and without exogenous enzymes for broiler chickens.
abstract: Wheat distillers' dried grains with solubles (DDGS) are being used increasingly in the poultry feed industry but their nutritional value is variable. The aim of this experiment was to examine the effect of batch to batch variation of wheat DDGS produced by the same manufacturer on the growth performance, dietary N corrected apparent metabolizable energy (AMEn), energy conversion ratio (ECR), total tract dry matter retention (DMR), nitrogen retention (NR) and fat digestibility (FD) coefficients when fed to broilers in complete diets with and without enzyme supplementation. Six UK wheat DDGS samples, produced by a single manufacturer, were used in a broiler experiment. Six diets containing 150 g/kg of each selected wheat DDGS sample were mixed. Each diet was then split into two batches and one of them was supplemented with commercial enzyme preparation, providing 1220 units xylanase and 152 units of β-glucanase/kg diet, resulting in 12 experimental diets. Each diet was fed ad libitum to five pens of two male Ross 308 broilers from 7 to 21 d old. Enzyme supplementation improved dietary AMEn, DMR, NR (P < 0.001) and FD (P < 0.05) compared to non-supplemented diets. There was DDGS sample by enzyme interaction (P < 0.05) on daily weight gain and ECR. The results suggest that the variability in AMEn of DDGS samples produced from a single manufacturer is greater than expected compared to the variability of whole wheat samples but substantially lower than expected from wheat DDGS samples from different EU manufacturers. This experiment has shown that the variation in feeding value of wheat DDGS may be explained by the variability in polysaccharide contents.
authors: The National Institute of Poultry Husbandry (NIPH), Harper Adams University, Shropshire, TF10 8NB, UK.
authors: I M
authors: IM
authors: Whiting
authors: The National Institute of Poultry Husbandry (NIPH), Harper Adams University, Shropshire, TF10 8NB, UK.
authors: V
authors: V
authors: Pirgozliev
authors: The National Institute of Poultry Husbandry (NIPH), Harper Adams University, Shropshire, TF10 8NB, UK.
authors: S P
authors: SP
authors: Rose
authors: The National Institute of Poultry Husbandry (NIPH), Harper Adams University, Shropshire, TF10 8NB, UK.
authors: J
authors: J
authors: Wilson
authors: Danisco Animal Nutrition, Wiltshire, SN8 4AN, UK.
authors: A M
authors: AM
authors: Amerah
authors: Agricultural Institute, Shumen, 3 Simeon Veliki Blvd., 9700, Bulgaria.
authors: S G
authors: SG
authors: Ivanova
authors: Agricultural Institute, Shumen, 3 Simeon Veliki Blvd., 9700, Bulgaria.
authors: G P
authors: GP
authors: Staykova
authors: World Bank African Center of Excellence in Agricultural Development and Sustainable Environment, Federal University of Agriculture PMB 2240 Abeokuta, Nigeria.
authors: O O
authors: OO
authors: Oluwatosin
authors: World Bank African Center of Excellence in Agricultural Development and Sustainable Environment, Federal University of Agriculture PMB 2240 Abeokuta, Nigeria.
authors: A O
authors: AO
authors: Oso
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D044602:Cellulases / Q000008:administration & dosage / Q000378:metabolism*; D002645:Chickens / Q000254:growth & development / Q000502:physiology*; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements / Q000032:analysis; D004063:Digestion / Q000502:physiology; D002523:Edible Grain / Q000737:chemistry; D043364:Endo-1,4-beta Xylanases / Q000008:administration & dosage / Q000378:metabolism*; D004734:Energy Metabolism; D008297:Male; D009584:Nitrogen / Q000378:metabolism; D009753:Nutritive Value; D014908:Triticum / Q000737:chemistry / Q000378:metabolism*
chemical_list: D044602:Cellulases; D043364:Endo-1,4-beta Xylanases; D009584:Nitrogen
keywords: ME; Wheat DDGS; batch variability; broiler; enzyme