The effect of different levels of Artemisia sieberi extract on performance, carcass characteristics and blood parameters in broiler chickens

The present study was conducted to determine the effects of Artemisia sieberi extract on performance, carcass characteristics and blood parameters of broiler chickens. In this experiment, 240 one-day-old male broiler chickens of the Cobb 500 strain were used in a completely randomized design with 4 treatments and 4 replications (15 chickens per replication). The experimental treatments, respectively, include 1) control with basic diet (without additives), 2) control diet + 100 mg/kg of the extract, 3) control diet + 200 mg/kg of extract, 4) control diet was + 300 mg/kg of the extract. In the entire rearing period, chickens receiving 300 mg/kg of treated extract had more weight gain and lower conversion coefficient than the control and other treatments (p<0.05). The use of 300 mg/kg of extract increased the percentage of breast and liver of broiler chickens compared to the control. With the increase in the level of the herb extract in the diet, the number of red blood cells and the amount of hemoglobin in the blood increased. The chickens receiving the diet containing 300 mg/kg of the herb extract had the highest and lowest concentrations of HDL and LDL in the blood, respectively. Based on the obtained results, it is possible to use the level of 300 mg/kg of the extract in the diet of broiler chickens to improve growth performance and blood parameters.