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Cornell Net Carbohydrate and Protein System (CNCPS) Fractionations and In-vitro Nutrient Digestibility of Corn Dried Distiller Grains with Solubles (DDGS) from Various Ethanol Plants in Andhra Pradesh

P. Ravi Kanth Reddy, R. K. Sowjanya Lakshmi, J. Raju, K. Raja Kishore, C. Anil Kumar.


A study has been carried out to find out the chemical composition, mineral profile, Cornell net carbohydrate and protein system (CNCPS) fractionations and in vitro digestibility of nutrients among different corn DDGS samples, collected from five ethanol processing industries of Andhra Pradesh. The mean CP, CF, EE, and TA of various DDGs samples were, 28.92, 7.68, 11.86, and 5.75, respectively. Similarly the calcium, phosphorous, sodium, potassium, magnesium and sulfur content of DDGs were 0.3, 0.61, 0.32, 0.82, 0.27, and 0.78, respectively. CNCPS fractionations revealed that DDGS can be effectively used as superior quality carbohydrate and bypass protein source. The average in vitro digestibility of DM, CP, NDF and ADF were, 71.45, 78.96, 70.42, and 63.36, respectively. Significant difference among the nutrient digestibility of samples studied by in-vitro digestibility and CNPS fractionation may be attributed to difference in processing procedures followed by the plants.

Key words: Dried Distillers Grain Solubles, Chemical Composition, Mineral Profile, In-vitro Digestibility

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