This study evaluated the productive performance and economic viability of supplementing Creole sheep with corn and cassava forage silage. Twelve males (17.6 ± 3.2 kg live weight and 8 months old) were selected and randomized into two groups, one supplemented with corn silage (D1EM) and another with mixed of corn and cassava silage (D2EM+EY) in equal proportions. The animals were evaluated for 52 days (10 days of adaptation) during the dry period. Productive performance in weight gain, body corporal condition, silage intake, and ocular conjunctiva coloration were recorded; information on costs and income was also collected. The productive data was analyzed considering a T-test for independent samples. The D2EM+EY increased (p<0.05) daily gain (0.080 ± 0.01 kg/d vs. 0.060 ± 0.01 kg/d) and accumulated weight in the evaluation period (3.33 ± 0.58 kg vs. 2.45 ± 0.43 kg), and decreased feed conversion (kg: kg, 6.01:1 vs. 8.27:1); also, was observed better ocular conjunctiva condition (Famacha® 2 vs. 1). D2EM+EY supplementation presented a benefit-cost ratio of 2.4 and profitability of 72%, with a production cost of US$ 0.93 per kg of live weight. The strategic supplementation with corn and cassava silage increased weight gain and maintained the animals' body condition during drought, with higher income than production costs.