Bromatological chemistry (Weende), the components of the cell wall (VanSoest), the nutritional value is determined through in vivo digestibility to estimatethe value of MS and NDT, evaluate and meat production profitability by usingtwo agricultural products (corn stover and rice), fortified with three levels ofmolasses and urea (1; 2 and 3%) in tropical mestizos feeding sheep. The digestibilitycoefficients for DM, OM, CP, CF, EE and ELN corn stover are in the orderof 40.49; 48.56; 22.14; 64.55; 67.03 and 36.94%, respectively, while for MS andNDT values 1377.80 kcal kg-1 DM and 40.39% are recorded, surpassing the rice(P 0.05) the CA, the GPD, the ICA and the RC. Treatmentsbased on rice stubble and corn combined with molasses and urea exceed(P0.05) el CA, la GPD, el ICA ni elRC. Los tratamientos en base a rastrojo de arroz y maíz combinados con melazay urea superan (P<0.01) al testigo (libre pastoreo). La mayor rentabilidad se laobtiene al suministrar rastrojo de maíz combinado con el 2 y 3% de urea (50.15y 34.91%, respectivamente). El uso de residuos agrícolas, enriquecidos conmelaza y urea, como alimento básico para los ovinos tropicales, es una forma dealimentación alternativa para la época seca en el Litoral ecuatoriano