Abstract

The current study was conducted for the period from 1/10/2018 to 1/3/2019 in the Department of biology-Faculty of Education for Girls-University of Kufa, which aims to study the effectiveness of the ethanol extract of Cydonia oblonga seeds in the viability of the protoscolices of the Echinococcus granulosus In vitro. The results showed that the ethanolic extract of the C. oblonga seeds had a significant effect on the destruction of the protoscolices. The mortality rate was 42.4% and 68.4% after 30 and 120 minutes respectively when exposed to 4 mg/ml, while the mortality rate was 68.9% and 98.1% after 30 and 120 minutes respectively at 16 mg/ml. Statistical analysis showed significant differences between the treatments at the probability level of 0.05. In the calculation of the concentration necessary for the destruction of 50% (LC50) of the protoscolices, it was 6.5 and 3.9 mg/ml after 30 and 120 minutes of the exposure to the extract respectively and when calculating the time required to destroy 50% (LT50) of the protoscolices, it was 39 and 27.40 minutes at the exposure to concentrations 4 and 16 mg/ml of the extract, respectively.