Effects of Artemisia sieberi essential oil on performance and some of blood parameters in broiler chickens

This experiment was conducted to evaluate the effects of different levels of Artemisia Sieberi oil (zero، 100، 200 and 300 mg/kg) and antibiotic on performance and blood parameters in broiler chicken. 200 day-old broiler chickens (Ross 308) were allocated to five treatments، four replications with a completely randomized design. In total period، broilers were fed dietary Artemisia Sieberi oil at level of 300 mg/kg had higher weight gain than other experimental treatments (P<0. 05). Control treatment had worse feed conversion ratio compared with broilers were fed dietary Artemisia Sieberi oil at levels of 100 and 300 mg/kg (P<0. 05). The level of 100 mg/kg of dietary Artemisia Sieberi oil significantly increased the white blood cell value compared with other treatments (P<0. 05). Red blood cell value significantly increased at levels of 100 and 300 mg/kg of dietary Artemisia Sieberi oils compared with other treatments (P<0. 05). In this study، dietary Artemisia Sieberi oil at levels of 300 mg/kg improve broiler performance and can be considered as an alternative to antibiotic growth promoter.