This study was investigation effect of dietarysenna and anise oilmedicinal plant on performance,blood biochemical and immunity parameters of broiler chickens. A total of 180 femalechickens were divided into 4 groups and 3 repetitions with 15 chicken each. H1, First group as control group did not receive any herbal planetoil, H2,200 ppm of senna oil, H3, 200 ppm of anise, H4,200 ppm of both herbal planets oil. The highest amount of daily feed intake was observed in the group4 and thelowest group was observed in control group also the lowest percent of abdominal fat was observed in experimental group 3, the highest percent of breast was in experimental group4.The results showed that using these medicinal plant oil in their diet had significant effects on performance, carcass traits(p>0.05) but there is no effect on blood biochemical parameters and immune system of broiler chickens (p>0.05).
