Corn DDGS for different livestock and poultry nutritional value and feeding quantity

       Poultry

　　DDGS is an excellent source of essential fatty acids and linoleic acid, which, combined with other feeds, becomes the feed for breeding and laying hens. DDGS lacks lysine, but the first limiting amino acid for poultry is methionine, which is used for feather growth, and all DDGS products are excellent sources of methionine. The maximum amount of DDGS in different poultry diets were: broiler 2.5%, fattening broiler 5%, laying hens 15%, breeding hens 20%, young hens 5%, ducks 5%, and fighting chickens 5%.

　　Pig

　　DDGS feed can prevent intestinal digestive diseases of pigs and inhibit its own pathogenic bacteria. DDGS has high available phosphorus content and low calcium content, which needs to be supplemented by other mineral raw materials. B vitamins and vitamin E are abundant, but lysine and tryptophan are very low and must be added. Corn DDGS are an excellent source of energy, protein and other major nutrients for pigs at different growth stages. The maximum amount of DDGS in different pig diets were: piglets (7kg ~ 12kg) and growing pigs (12kg ~ 50kg)20%, fattening pigs (50kg ~ 100kg)20%, pregnant sows 50%, lactating sows 20%, breeding boars 50% and reserve sows 20%.

　　Beef cattle

　　The advantages of DDGS used in beef cattle feed include: improving rumen fermentation function, providing rumen protein, converting fiber into energy, palatability and food safety, and being an excellent source of minerals such as phosphorus and potassium. The beef production test showed that the net weight gain of fresh DG, fresh DGS and DDGS was 96%, 102% and 80% of that of pressed corn, respectively. Since the replacement of soluble carbohydrates and starches by fats and effective fibers in fresh or dried DGS helps maintain the balance of rumen microecology and stabilize rumen pH, fresh or dried DGS can reduce rumen acidosis. DDGS is unique in terms of rumen proteins, excellent palatability and safety of effective fibers, and it can be used in milk substitutes up to 20%. The dosage of tonic milk is up to 20%; The amount of beef cattle fattened is 40% of the total dry matter. Reserve cows are used for 25% of the total intake of dry matter.

　　Cow

　　DDGS are an excellent source of insoluble ingestion protein (62%) or rumen protein (55%), neutral washing fiber (44%) and non-fibrous carbohydrates (11%) required for high yield dairy cows. This avoids the toxic hazards to sperm, eggs and embryos caused by the increased levels of ammonia, urea and other nitrogen-containing compounds in uterine fluid caused by excessive dietary protein degradation. DDGS is also an excellent source of rumen protein for normal reproduction of dairy cows. DDGS is 19% of total dry matter intake in high-yield dairy cows, with milk production performance equal to or greater than that of soybean meal diet, and the maximum amount of milk intake for lactating dairy cows is 30% of total dry matter intake.