The effects of dietary OEO on carcass traits of broilers are reported in Table 3. Carcass parameters, in terms of dressing percentage, eviscerated rate, and leg muscle percentage, were similar among AVI, OEO300, and OEO600. Supplementation of AVI, OEO300, and OEO600 improved (P < 0.05) dressing percentage and eviscerated rate compared with CON. In addition, the broilers fed with OEO600 had the highest (P = 0.003) breast muscle percentage and the lowest (P = 0.008) abdominal fat percentage. Moreover, the broilers fed with OEO300 had the highest (P = 0.012) leg muscle percentage.