an investigating the antiparasitic effect of sulfur hot springs on sheep flocks using the minimal lethality method

For many years, animals have contracted secondary illnesses from their skin such as parasites and fungi, leading to a higher death toll. with the diverse nature of our country, there is a volcanic hot spring containing sulfur and other substances that can aid in managing and eliminating various parasites and fungal skin conditions. first, external parasites (ticks) were collected from 20 tick-infected sheep in dehloran city (ilam province, iran) from different flocks randomly. subsequently, 1000 ml of water was collected from two sulfur springs in dehloran and mehran cities in ilam province. then, 10 dilutions were created ranging from 10% to 100%. the laboratory plates held ticks in 11 test tubes; one tube containing distilled water as a control and 10 tubes containing various concentrations of the substance. they were taken away for 20 minutes and inspected with a stereomicroscope. there was a positive effect observed when increasing the concentration from 70% to 100%. at 100% concentration, the movement of ticks was completely stopped. considering the low cost and availability of this method for areas that have such springs, it can be concluded that this method can be used in herds that are far from access to anti-parasitic drugs.