Feeds nitrogen-free extract

Feeding Stuff Water Ash Protein Crude Fiber Nitrogen Free Extract Ether Extract... 

The carbohydrate concentration in whole SB is lower than in SBM, due to the concentrating effect of lipid extraction on the latter. Whole SB contain approximately 27% nitrogen free extract (NFE) and 6% crude fiber (CF) on a dry matter basis (DMB), whereas SBM with or without hulls contains 36% NFE and 8% CF or 34% NFE and 4% CF, respectively (Potter Potchanakorn, 1984). Although NFE (plus CF) is not commonly used today because of the limited information it provides on carbohydrates from a nutritional standpoint, it provides a reasonable indication of the gross carbohydrate content of a feed- or foodstuff. The NFE contains the nonstructural carbohydrates and part of the structural carbohydrates, and CF contains part of the structural carbohydrates. 

NUTRITIONAL VALUE OF COTTONSEED. Typically, cottonseed is comprised of about 10% linters, 35% hull, and 55% kernels (meats). The kernels, from which food and feed are obtained, contain about 7% moisture, 30% oil, 30% crude protein, 24% nitrogen-free extract, 4.8% crude fiber, and 4.4% tish. 

TDN (total digestible nutrients) A term widely used in animal nutrition that indicates the energy value of feeds. TDN = % digestible protein + % digestible nitrogen-free extract (carbohydrates) -i- % digestible fiber + (% digestible fat x 2.25). 

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