Abstract: A study was conducted to evaluate the effect of feeding different levels of protein to growing crossbred kids (F1: 50% Shami breed x 50% baladi breed). Weanling crossbred kids (n=18; 75 to 90 days old) were selected and individually housed at our experimental farm. Kids were divided randomly to one of the three treatments. The three dietary treatments were: T1: Control ration, formulated according to NRC (1985) to cover the protein and other nutrients requirements. 2: T2, ration formulated to covered only 75% of protein recommended by NRC. 3: T3, Control diet + bypass methionine 2.4 g Smartamine®/day/ kid. Kids were individually fed ad libitum their respective diets for 12 weeks and feed intake were recorded daily for each kid. Initial and monthly body weights were also recorded. Blood samples were collected monthly and analyzed for metabolites and some trace minerals concentrations. At the end of the experiment, three kids from each treatment were slaughtered and kidney, liver and spleen were taken, weighted and samples collected, including meat, for further analysis. Data were analyzed using Complete Randomized Design with repeated measurements. Feeding crossbred growing kids bypass methionine above NRC recommendation significantly (P<0.05) improve final body weight, total weight gain, average daily gain and feed conversion ration when compared with the control and T1 groups. There was no significant effect (P>0.05) of treatments on mineral concentrations in blood serum, liver, kidney, spleen and meat samples. Furthermore, treatments didn’t cause any significant effect (P>0.05) on cholesterol, albumin, total protein, glucose and creatinine levels in the blood serum, but affect meat quality measurements.. \nIn conclusion, feeding bypass methionine above NRC protein recommendation level cause a significant improvement in performance of crossbred growing kids. Breed and environmental factors may affect protein and probably other nutrients requirements when compared with NRC recommendation. Further research is needed.