effect of vitamin e and c, and different source of oil on performance and serum metabolites of broilers

an experiment was conducted to determine of the effects of vitamin e and c supplementation in diet based on different source of oils on performance and serum parameters of broilers. a total of 320 broiler chicks (strain ross 308) used in a 2×2×2 factorial arrangement in the form of completely randomized design with eight treatments, four replicates and 10 chicks in each replicate. experimental factors included: two different oil sources (soybean and canola), two levels of vitamin e (zero and 200 mg/kg), and two levels of vitamin c (0 and 1000 mg/kg). oil sources and vitamin e and c had no effect on performance of broilers. supplementation of vitamin e or c increased serum total cholesterol and hdl (p