ABSTRACT The purpose of this study was to evaluate the performance of beef cattle with two levels of energy-protein supplementation of low-consumption on African Bermudagrass pasture, overseeded in winter with oat and ryegrass, with or without irrigation. Twenty-four castrated Angus steers (11 months old and had an initial average of 220 kg body weight (BW)) were used in experimental area of 3.6 ha. The experiment was completely randomized in a 2×2 factorial design, with three replicates. The evaluation period was 249 days (July/2019 to March/2020). The treatments were: irrigated pasture with supplementation of 1 g/kg BW or 2.7 g/kg BW and non-irrigated pasture with 1 g/kg BW of supplement or 2.7 g/kg BW. The grazing method was continuous with a variable stocking rate. Irrigation provided pastures with better chemical composition in winter and spring. Irrigation increased the daily accumulation rate in winter (84.6 vs. 45.9 kg DM/ha/day), providing a greater stocking rate (1,702 vs. 1,385 kg/ha) and, consequently, body weight gain per hectare. Supplementation of 2.7 g/kg BW provided a greater stocking rate in winter (1,652 vs. 1,435 kg/ha) and spring (3,096 vs. 2,811 kg/ha), not changing in summer. The association of irrigation and supplementation of 2.7 vs. 1.0 g/kg BW improves the intake pattern by the animal in summer without changing productivity parameters. Irrigation increases productivity and the nutritional value of pasture with higher livestock production per area in periods of water deficit. The supply of 2.7 vs. 1.0 g/kg BW provides a greater stocking rate and body weight gain per hectare. energyprotein energy protein lowconsumption low consumption ryegrass Twentyfour Twenty four 11 (1 22 (BW) 36 3 6 3. ha 2 2× design replicates 24 July/2019 July2019 July 2019 (July/201 March/2020. March2020 March March/2020 . 2020 March/2020) gkg g 27 7 2. nonirrigated non 84.6 846 84 (84. vs 459 45 9 45. DM/ha/day, DMhaday DM/ha/day , DM day DM/ha/day) 1,702 1702 702 (1,70 1385 385 1,38 kg/ha kgha consequently hectare 1,652 1652 652 (1,65 1435 435 1,43 3,096 3096 096 (3,09 2811 811 2,81 kg/ha, 10 0 1. parameters deficit ( (BW July/201 July201 201 (July/20 March202 March/202 202 84. 8 (84 4 1,70 170 70 (1,7 138 38 1,3 1,65 165 65 (1,6 143 43 1,4 3,09 309 09 (3,0 281 81 2,8 July/20 July20 20 (July/2 March20 March/20 (8 1,7 17 (1, 13 1, 1,6 16 14 3,0 30 (3, 28 2, July/2 July2 (July/ March2 March/2 3, (3 July/ (July March/