One of the things that affect livestock behavior is herbal compounds, including essential oils, so the aim of this study is the comparison three Artemisia species in terms of essential oils composition coincident with the time of grazing the livestock from these species. For this purpose three Artemisia species including (Artemisia sieberi Bess, Artemisia kermanensis Podl, Artemisia khorassanica podl) From habitats with similar conditions were studied. In this study, 5 plant bases were selected randomly from each species and the essential oils were obtained by SDE of air-dried samples and were analyzed by GC-MS. The results showed that the about 88% of essential oil compounds were common in these three species and Artemisia kermanensis Podl had the more essential oil percentage (98.47%) and Artemisia sieberi had lowest essential oil percentage (73.21%) while the rate of grazing on the Artemisia sieberi Bess. was higher in the same vegetative stage. 6% of the compounds were observed only in the Artemisia kermanensis species, which is probably the presence of these compounds are the reason for the lack of feeding by the livestock of this species.
