Abstract: The effect of three varying dietary energy sources for cockerel was investigated. Six (6) experimental diets were formulated and designated as D₁, D₂, D_3, D_4, D₅ D₆. Diets 1 and 4 (maize based) served as control while diets 2, 3, 5, and 6 were sorghum � based, millet-based, sorghum-oil-based, and millet-oil-based respectively. A total of 120-five week old Anak cockerels were then assigned to those diets in a completely randomized design (CRD). The trial consists of 20 birds per treatment, replicated twice, with each replicate having 10 cockerel chicks. The trial lasted 8 weeks. Data were collected on feed intake and weight change while feed-to-gain ratio and economics of production were calculated. The results showed that the mean daily ratio were not significantly (P>0.05) affected by the dietary treatments. Weight gain was numerically higher in D5 (millet) than maize (control) and Sorghum group. Feed intake was significantly (P>0.05) higher in D5 than other treatments. All the cost analysis parameters considered were significant (P<0.05) with the exception of revenue (N) and gross margin (N). Diet 6 gave the highest cost per kg feed value (N59.64) while Diet 2 gave the least value (N 36.19), Diet 3 gave the highest cost/kg weight gain (N179.45) while D4 gave the lowest value (N145.30). Diet 5. gave the best revenue (N670.00) followed by the D4 (control) before the other treatments. Results for the gross margin indicate that D4 (control) gave the best value (N470.03). In conclusion, replacement of maize with either sorghum or millet in cockerel�s ration enhanced performance, while inclusion of palm oil at 8.5% in millet-based diet depressed performance.