Application of DDGS feed in ruminant animal production

Corn DDGS feed is the trade name for protein feed in distiller's grains, which refers to dry distiller's grains containing soluble solids. Its nutritional components include high protein, high available phosphorus, rich vitamins, and low starch content. In pig production, promoting the application of DDGS can reduce the amount of soybean meal in feed and play an important role in reducing dependence on imported soybeans.
Detailed Introduction to Corn DDGS
DDGS feed is dry alcohol meal produced from corn as raw material. In the process of fermenting corn to produce ethanol, the starch is converted into ethanol and carbon dioxide, while other nutrients such as protein, fat, fiber, etc. remain as solids in the distillation waste liquid. At the same time, due to the action of microorganisms, the protein, B vitamins, minerals, and amino acid content in alcohol meal have increased compared to corn, and contain unknown growth promoting factors generated during fermentation.
type
According to the grain raw materials, DDGS can be divided into corn DDGS, wheat DDGS, barley DDGS, sorghum DDGS, and rice DDGS, as well as compound DDGS produced by mixing corn with one or more other grains; The nutritional composition of DDGS produced from different raw materials, origins, and processing methods varies greatly. There are two types of corn alcohol meal protein feed on the market: one is DDG, which is a feed obtained by simply filtering corn alcohol residue, drying the filter residue, discharging the filter solution, and only drying the filter residue separately; Another type is DDGS, which is a feed obtained by drying and concentrating the filter solution, and then mixing it with the filter residue for drying. The energy and total amount of nutrients in the latter are significantly higher than those in the former.
Production application
Due to its protein content of over 26%, DDGS has become a widely used new type of protein feed material in domestic and foreign feed production enterprises. It is usually used to replace soybean meal and fish meal in animal and aquatic compound feed, with a maximum addition ratio of 30%, and can be directly fed to feed feed animals. DDGS is used in beef cattle feed, and its superiority lies in improving rumen fermentation function, providing rumen protein, converting fiber into energy, strong palatability and food safety, and being an excellent source of minerals such as phosphorus and potassium. Research has shown that fresh or dried DDGS can reduce rumen acidosis by replacing soluble carbohydrates and starch with fat and effective fiber, which helps maintain the balance of rumen microbiota and stabilize rumen pH. The uniqueness of DDGS in terms of rumen protein, excellent palatability, and safety of effective fiber. It is advisable to add less than 40% and 30% of the concentrate to the diet of cattle and sheep.