Comparison of Corn Ethanol Co-products from Brazil and USA Apparent and Standardized Ileal Digestibility of Amino Acids in Pigs. (7th May 2021)

• Record Type: Journal Article
• Authors: Paula, Vinicius R C; Milani, Natália C; Azevedo, Cândida P F; Souza, Leury J; Sedano, Anderson A; Mike, Brian; Shurson, Gerald C; Ruiz, Urbano S
• Is Part Of: Journal of animal science. Volume 99(2021)Supplement 1
• Page Start: 188
• Page End: 189
• Publication Date: 2021-05-07
• Subjects: DDG -- DDGS -- HP DDG -- swine; Livestock -- Periodicals; Livestock; Electronic journals; Periodicals; 636.005
• DOI: 10.1093/jas/skab054.313
• Languages: English
• ISSNs: 0021-8812

Abstract

Abstract: The objective of this study was to determine the apparent and standardized ileal digestibility (AID and SID) of crude protein (CP) and amino acids (AA) of a corn distillers dried grains with solubles (DDGS) from USA (UDG), a corn bran with solubles from Brazil (CBS) and high protein corn distillers dried grains from USA and Brazil (UHP and BHP), in growing pigs. Fifty crossbred barrows (46.2±5.3kg) were fed a semi-purified N-free diet, used to determine endogenous N losses, or four diets composed of 40% of each ingredient, as the only source of N, substituting for cornstarch in N-free diet. Animals were fed at 2.8 x maintenance (110 kcal of DE per kg of BW 0.75 ) for 9 d and on the 10 th d were euthanized for ileal digesta collection. TiO2 was used as an indigestible marker (0.3%) for digestibility calculations. A randomized block design was used, with 10 replicates, using the pig as the experimental unit, and results submitted to orthogonal contrast test. The CBS, UDG, BHP and UHP contained (as-fed basis) 13.9, 25.8, 42.9 and 34.9% CP; 9.0, 6.4, 10.3 and 7.3% EE; 40.8, 40.2, 32.7 and 47.5% NDF; 4.51, 4.53, 5.30 and 4.90 Mcal/kg GE; and 0.40, 0.73, 1.37 and 1.00% Lys, respectively. The AID of CP, Arg, His, Ile, Leu, Lys, Thr and Val; and the SID of His, Leu, Lys, and Val of BHP were 8 to 36% greater (P < 0.05) than those from UHP. The AID of CP, Arg, Ileu, Leu, Phe, Thr, and Trp; and SID of CP, Arg, Phe, and Thr of UDG were 9 to 45% greater (P < 0.05) than those of CBS. In conclusion, BHP had a greater digestibility of most AA than UHP, while the CBS evaluated had lower nutritional value than the UDG source.