The intakesof dry matter (IDM), metabolizable energy (IME), ether extract (IEE), crudeprotein (ICP), neutral detergent fiber (INDF), acid detergent fiber (IADF) andorganic matter (IOM) and the daily weight gain (WG), in kg/day, and feed conversion(FC) were determined to evaluate the effect of three dietary energy levels,for sheep. Eighteen Santa Inês sheep (averaging live weight of 20 kg sixmonths old) were full fed diets with 2.42, 2.66 and 2.83 Mcal of metabolizableenergy (ME)/kg of dry matter (DM). A randomized block design, with six replicates,was used. IDM, in kg/day, %LW, g/kg0.75, showed no effect, as thedietary energy levels increased, with average of 0.88 kg, 3.33% and 75.52 g,respectively. INDF and IADF showed linear decreasing effect, as the dietaryenergy levels increased. IEE and IME increased linearly, as the dietary energylevels increased. There was no significant effect for ICP, as the dietary energylevels increased. Dietary energy levels did not influence weight gain and feedconversion, that were of 0.123, 0.137, and 0.191 kg and 9.6, 8.4, and 7.0, respectively.
