CANYON -- Wet sorghum distiller's grains can be fed in a steam-flaked corn ration without affecting efficiencies, said two researchers//.
The two four-month cattle finishing experiments with yearling heifers were conducted by Dr. Mike Brown, a Texas Agricultural Experiment Station ruminant nutritionist and West Texas A&M University associate professor, and Dr. Andy Cole, U.S. Department of Agriculture-Agricultural Research Service animal scientist.
Designed to gain more information on the feeding value of wet sorghum distiller's grains plus solubles, the study included 400 head of cattle. These cattle were divided between two study periods, April 27-Aug.14 and July 28-Dec. 8; with eight replications of five treatments, Brown said.
"We wanted to determine what the trade-off is when you substitute wet distiller's grains for some of the steam-flaked corn and cottonseed meal," Brown said. "Also, there hadn't been any studies previously to assess the value of the fat within the distiller's grains."
Two of the treatments were standardized, based on steam-flaked corn diets with no wet distiller's grains, while three of the diets had 15 percent of the ration dry matter as wet sorghum distiller's grains. The distiller's grains replaced a combination of 35 percent cottonseed meal and 65 percent steam-flaked corn, he said.
Yellow grease was added to the steam-flaked corn diets as a fat source because the distiller's grains have a higher fat content than the original grain, Cole said. The energy-dense fat helps tie the ration together, making it less dusty.
In the long run, with 8 percent to 10 percent fat, wet distiller's grains have a number of advantages over dried distiller's grains, including greater nutritive value and elimination of the added expense of drying, he said. However, the disadvantage is hauling the water, so they must be from a local source.
Within the study, heifers receiving the wPage: 1 2 3 Related medicine news :1
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