DDGS: Energy and nutrient content and digestibility
نویسنده
چکیده
The concentration of gross energy in distillers dried grain with solubles (DDGS) is greater than in corn. However, because of a lower digestibility of energy in DDGS than in corn, there is no difference in the concentration of digestible and metabolizable energy between DDGS and corn. The apparent and standardized ileal digestibility of amino acids in DDGS does vary among sources but, with the exception of lysine, the variability is no greater than what has been reported for other feed ingredients. Lysine in DDGS may be damaged if excessive heating is used during the drying process, which in turn leads to a low digestibility of lysine. Based on the wide range of digestibility values for lysine in DDGS, it is likely that some ethanol plants do overheat DDGS and destroy some of the lysine in the product. The digestibility of phosphorus in DDGS is approximately 58%. This value is greater than in corn. Therefore, if DDGS is included in the diet, less inorganic phosphorus is needed.
منابع مشابه
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