The research was conducted to examine the effects of supplementation dietary Echinacea purpura and Carumcopticum extract medicinal plant on performance, blood biochemical and immunity parameters of broiler chickens.240Ross broilers (one days of age) were used. The broiler were randomly allocated to 4 groups in 12 pens containing 20 birds each and assigned to receive one of 4 dietary treatments for 42 days (P1, First group as control group did not receive any herbal planet oil, P2, 200 ppm of Echinacea purpura extract, P3, 200 ppm Carumcopticum extract, P4, 200 ppm of both herbal planets oil.). The lowest and the highest feed conversion rates were respectively related to Echinacea purpura and control group(P< 0.05).The highest amount of daily feed intake was observed in the group4 and the lowest group was observed in control group also Carcass yield in 4 and 2 groups was significantly (P<0.05)higher than in P1. Significantly (P<0.05) higher breast percentage in group 4and the lowest percentage of abdominal fat was in the 3 group. The results showed that using Echinacea purpura and Carumcopticum extract 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).
