حیدر علوان نافل الفتلاوی

The present experiment was performed on the effect of Eryngium caucasicum and vitamin C on performance, carcass characteristics, blood parameters and immune system in broilers. The experiment was performed with 4 treatments, 5 replications and 15 one-day-old Ross 308 chickens in each replication in a completely randomized design. Treatments include 1) control (diet without additives), 2) control + 2% Zolang plant, 3) control + 0.2% vitamin C, 4) control + 2% Zolang plant + 0.2% of vitamin C. The results showed that feed intake, weight gain and broiler conversion ratio in the final periods as well as the whole period in treatments that used a mixture of Zolang plant and vitamin C, had a significant increase with the control (p <0.05). The percentage of carcasses in the treatments that used a mixture of Zolang and vitamin C was significantly increased with the control (p <0.05). All experimental diets significantly reduced the total blood protein of broilers compared to the control (p <0.05). The mixed diet of Zolang plant and vitamin C caused a significant increase in HDL compared to the control (p <0.05). The results showed that the effect of experimental treatments was significant only on alkaline phosphatase (p <0.05). Also, bursa fabricius weight in treatments that used a mixture of Zolang plant and vitamin C had a significant increase with the control (p <0.05). In general, the results showed that the use of a mixture of Zolang and vitamin C in the diet of broiler chickens can improve performance and strengthen the immune system.