Using of non-protein, nitrogen (NPN) compounds on as alternative. to high-cost protein source, to demonstrate the replacement of pure Yellow corn byproducts with urea added at a rate of 7.17% to the ready-made basic material, for an incubation period of 30 days and its use in basic ratios of 0,10, 22,30 and 39. % replace wheat bran in overweight comments Awassi has succeeded in overcoming difficulties. The results showed that conditioning with urea right a significant increase (p≤0.05) in total protein. Conditioning also a significant increase in the level of urea. The level of masterol triglyceride with the levels of substitution with yellow corn byproducts could not be compared with the control and low substitution levels.