Abstract
Normal soybean oil or the oil oxidized to a peroxide value of 292 milli-equivalent per kg and free fatty acids 2.91 %, was incorporated at a level of 2% in broiler starter rations and 3% in broiler finisher rations, with or without the addition of 125 mg butylhydroxy toluene (antioxidant) per kg ration. These rations were fed to 120 day-old broiler chicks for periods of 4 and 3 weeks, respectively, in a completely randomized design. The chicks grew normally with no adverse effect on weight gain or feed conversion efficiency between groups, during both periods. The only difference was noticed in feed consumption during finisher period which decreased significantly while the addition of antioxidant did not exert any effect on either of the tested parameters.
