Evaluation of Wet Distillers Grains for Finishing Cattle

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A feeding trial was conducted with 870-lb steers fed 137 days to evaluate replacing cracked corn with dry and wet distillers grains with solubles (DGS) as feed for finishing cattle. Dry DGS was evaluated at 16% of diet dry matter. Wet DGS (WDGS) was evaluated at 14.6%, 26.2%, and 37.5% of diet dry matter. Control diets were supplemented with urea or a combination of urea and soybean meal. Feeding 16% dry DGS or 14.6% wet DGS increased rate of gain and tended to increase carcass fatness. Increasing the amount of wet DGS in the diet decreased feed intake, reduced gain, and improved feed conversion. The calculated net energy for gain values for dry and wet DGS were .92 and 1.5 times the energy value of corn grain. Economic returns declined slightly as the percentage of wet DGS increased in the diet, but remained above the two diets without DGS. The average benefits from feeding wet DGS averaged $25, $21, and $19 per head for steers fed 14.6%, 26.2%, and 35.7%, respectively, based on a formula price for wet DGS related to price of corn and including a charge for transportation of the wet feed.

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تاریخ انتشار 1997