An experiment was conducted to investigate growth performance and production of rumen metabolites in growing Yankasa sheep grazing the natural vegetation during the early wet season in the sudan savanna. The animals were fed supplements containing different nitrogen sources (cotton seed cake, CSC, sundried broiler litter, SDBL and urea) as follows: 1(CSC; control), 2(CSC/SDBL), 3(urea/SDBL), 4(CSC/urea) and 5(urea). The animals were randomly divided into 5 groups of 4 animals each, balanced for weight and age, then allocated to one of the supplements in a completely randomised design for 84 days. The trial was divided into 3 periods, each spanning 28 days, based on progression to the late wet season.Concentrate dry matter intake (CDMI) was much higher during the first period compared to the others. Sheep on CSC/urea (250.27g/day), CSC/SDBL (245.87g/day) and urea alone (242.49g/day) had higher CDMI compared to those on SDBL only (209.47g/day). Mean daily weight gains were higher (P