Author: David Ryan PingelPublisher:
ISBN:
Category :
Languages : en
Pages : 130
Book Description
Two experiments were conducted to evaluate corn distiller's solubles (CDS), a co-product from dry grind ethanol plants, in beef steers fed corn-based diets. In Exp. I, four pens of steers were fed for 109 d diets containing 0, 4, 8 or 12% CDS. Daily feed, gain and gain/feed were 9.4, 10.1, 10.0, and 10.1 (kg/d); 1.75, 1.78, 1.76, and 1.79 (kg/d); 0.185, 0.177, 0.176, and 0.179; for the four respective diets. Feed intake increased when CDS was fed (P = 0.012). Gain, gain/feed, and carcass traits were not statistically different (P> 0.1). In Exp. II, ten steers were used in a digestion study to evaluate diets containing 4 and 8% CDS, or 10 and 20% wet corn distillers grain with solubles (WDGS). The steers were placed in digestion crates for total collection of feces and urine. Intake (kg/d) of DM, starch, NDF, ADF, CP, and fat were: 7.99, 8.71, 8.62 & 8.41, 7.83; 4.92, 4.87, 4.93, & 4.81, 3.95; 1.19, 1.25, 1.19, & 1.42, 1.42; 0.43, 0.48, 0.45, & 0.56, 0.55; 0.96, 1.08, 1.03, & 1.03, 1.03; 0.27, 0.35, 0.43, & 0.43, 0.50; for 0, 4 or 8% CDS and 10 or 20% WDGS. Respective apparent digestibility of DM, starch, NDF, ADF, CP, and fat were 79, 78, 76 & 77, 76; 97, 94, 95, & 95, 94; 53, 52, 46 & 52, 56; 41, 45, 37, & 48, 50; 72, 72, 70, & 69, 69; 63, 66, 65, & 68, 75. Feeding distillers co-products did not affect DM intake or digestibility of NDF, ADF, or CP (P> 0.05), but did increase fat intake (P