Evaluation of a high-protein DDGS product in broiler chickens: performance, nitrogen-corrected apparent metabolisable energy, and standardised ileal amino acid digestibility

Abstract

1. New production processes and additional uses for corn co-products have increased the availability of distiller's dried grains with solubles (DDGS) with varying energy and amino acid digestibility, for use in poultry feed. The objective of this study was to determine the performance, N-corrected metabolisable energy (AMEn), and amino acid (AA) digestibility of a 34% CP (as fed) high-protein DDGS (HP-DDGS) included in poultry diets for Cobb 500 broiler chickens. 2. A total of 832 Cobb 500 broilers were randomly assigned to four dietary treatments containing 5% conventional DDGS (CV-DDGS) as a control or 10, 15, and 20% HPDDGS and fed for 42 d. After the performance trial, 240 birds from the original 832 were selected for a concurrent AMEn and AA digestibility experiment consisting of two AMEn diets and two AA diets. 3. Birds fed diets containing 15 and 20% HP-DDGS gained less weight than birds fed the CV-DDGS (P <0.05) but did not differ in feed intake (FI), and therefore had a less efficient FCR than the control (P<0.05). The AMEn of HP-DDGS was determined to be 11.4 MJ/kg. The standardised ileal amino acid digestibility (SIAAD) of the essential amino acids Lys and Met were determined to be 80.9 and 88.6%, respectively. 4. HP-DDGS can be included in broiler diets up to 10% without any negative impact on performance or requiring supplemental Lys and Arg. The results from the AA digestibility study indicated that HP-DDGS could be a good source of digestible Lys.

Additivity of Ileal Amino Acid Digestibility in Diets Containing Corn, Soybean Meal, and Corn Distillers Dried Grains with Solubles for Male Broilers

“…However, the estimated AID of AAs in CDDGS in this study was higher than those previously reported [16]. The SID of AAs for corn, SBM, and CDDGS were within the range reported in previous studies [1,15,17,18]. The SID of the indispensable AAs in corn, SBM, and CDDGS ranged from 91.4% (Thr) to 98.0% (Met), from 93.5% (Thr) to 97.4% (Met), and from 73.5% (Lys) to 89.5% (Leu), respectively.…”

Nontraditional Feedstuffs as an Alternative in Poultry Feed

“…It can be defined as a product obtained after ethanol extraction by distillation from the yeast fermentation, and drying at 75% of the resultant [8]. Including DDGS in poultry diets to replace part of yellow corn and soybean meal have shown positive results in terms of growth performance [9]. The main limitation of using DDGS in monogastrics is the variability of its nutrients content and availability [9].…”

“…Including DDGS in poultry diets to replace part of yellow corn and soybean meal have shown positive results in terms of growth performance [9]. The main limitation of using DDGS in monogastrics is the variability of its nutrients content and availability [9]. This is due to the variation of growing conditions, ethanol production method and oil extraction.…”

Proteins in dried distillers' grains with solubles: A review of animal feed value and potential non‐food uses

“…When converted to a dry matter basis, crude protein (CP) ranged from 26.0% to 31.7%, fat from 9.1% to 14.1%, ash from 3.7% to 8.1%, acid detergent fiber (ADF) from 11.4% to 20.8%, and neutral detergent fiber (NDF) from 33.1 to 43.9%, with average values for protein, oil, ash, total carbohydrate, ADF, and NDF of 29.7%, 10.7%, 5.3%, 54.3%, 15.9%, and 38.8%, respectively, and average dry matter of 90.5% (Liu, 2011). In particular, the nutritional values of DDGS were primarily related to the contents of CP, amino acids (AA), minerals (Ca, Mg, P, and K), and dietary fiber in DDGS (Fries‐Craft & Bobeck, 2019). Under the same fermentation conditions, previous studies showed that the CP content of maize‐DDGS was lower than that of wheat‐DDGS (Böttger & Südekum, 2017b; De Boever et al, 2014).…”