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Changes in body weight, and intake, digestibility and total digestible nutrients of diets Diets (1) CONT SBOIL Changes in body weight (kg/d) 0.
5% neutral detergent fiber (NDF), 67% total digestible nutrients (TDN) and net energy of lactation (NEL) of 0.
Concentrates were isoenergetic and contained 40% total digestible nutrients and 20, 30, 40 and 50% crude protein (Table 1).
The estimated total digestible nutrients (TDNest) of the raw materials and the total diets were calculated according to the equations described by NRC (2001).
The total digestible nutrients (TDN) were calculated according to Weiss (1999) but using the NDF and the NFC with corrections for ash and protein, using the following equation:
Total digestible nutrients (TDN) were calculated from the proportion of digestible nutrients, as show in equation: TDN = (Digestible Crude Protein+ Digestible Neutral Detergent Fibre + Digestible Non-Fibrous Carbohydrates + (2.