investigation of performance and immune response of broiler chickens fed diet containing butyric acid and l-carnitine supplement

effect of l-carnitine and butyric acid on the performance and immune responses of 192 broiler chickens (ross 308) was investigated with three levels of l-carnitine (zero, 125 and 250 mg/kg) and two levels of butyric acid (2 g/kg) in a 2×3 factorial arrangement based on randomized complete block design with 6 dietary treatments, four replicates and eight birds per each. broilers fed basal diet plus feed additives (l-carnitine and butyric acid) did not have significant differences on feed intake, body weight gain and feed conversion ratio when compred to control group. broilers fed diets containing additives had higher blood lymphocyte count than control diet fed birds (p