Effect of Essential Oil Isolated from Rosmarinus officinalis Leaves on the Vitality of Echinococcus granulosus Protoscoleces of Sheep Outside the Organism in vitro

This study was carried out at the beginning of September 2018 to the end of August 2019, the current study involves the effect of the essential oils of rosemary plant leaves on vitality of Echinococcus granulosus protoscolices. So using modified drip-type steam distillation device (Clevenger), the biological effectiveness of the essential oils were tested and its effect was effective in vitality of primacies protoscolices using concentrations 20, 30, 40, 50, 100 mg / ml and times of 15, 30, 45, 60 minutes and didnt show a significant difference among used concentrations and duration on the probability level p<0.05, this led to the mortality of all protoscolices with 100% percentage in all duration and concentrations used on the test. Deduced from the current study the biological activity of the essential oils of rosmary leaves against the protoscolices, so we recommend increasing interest in these extracts and it's use against this epidemic disease and during surgery to remove the hydatid cysts.