Tehran University of Medical Sciences Iranian Journal of Public Health 2251-6085 47 5 2018 05 13 742 749 Peyvand BIGLARI Dept. of Biology Biosystematics, Faculty of Modern Medical Sciences, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran Hasan BAKHSHI Malaria and Vector Research Group, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran Sadegh CHINIKAR Laboratory of Arboviruses and Viral Hemorrhagic Fevers (National Reference Laboratory), Pasteur Institute of Iran, Tehran, Iran Hamid BELQEISZADEH Dept. of Parasitology and Entomology, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran Masoud GHAFFARI Veterinary Office of Golpayegan, Isfahan, Iran Siavash JAVAHERIZADEH Dept. of Clinical Laboratory Sciences, Faculty of Paramedical Sciences, Islamic Azad University, Tehran Medical Sciences Branch, Tehran, Iran Faezeh FAGHIHI Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran Zakkyeh TELMADARRAIY Dept. of Medical Entomology and Vector Control, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran 2018 05 13 2018 05 13  Background: This study was carried out to determine the infestation of domestic ruminants to ticks in an important livestock-rearing region, located in central part of Iran. Methods: Ticks were collected from cattle, sheep, and goats and then were identified with appropriate identification keys to species level in two different ecological regions of plains and mountain in 4 seasons in 2015. Results: Totally 492 ticks from cattle, sheep, and goats in 34 herds were collected. Totally, 18.53% of domestic animals were infected by ticks. All ticks were belonged to family Ixodidae and classified into three genera and six species comprising Hyalomma anatolicum (38.83%), Hy. Asiaticum (23.37%), Hy. marginatum (2.85%), Hy. sp. (3.45%), Rhipicephalus sanguineus (14.02%) and Haemaphysalis sulcata (10.98%). Sex ratio of the collected specimens showed 241 (48.99%) male, 219 (44.51%) female and 32 (6.5%) nymph Conclusion: Studied area is important for production of livestock and dairy products. Annually, many livestock products are exported to other parts from this region; therefore, it is very important to identify the infection rate of tick-borne diseases as well as safety factors on livestock.     https://ijph.tums.ac.ir/index.php/ijph/article/view/13359 https://ijph.tums.ac.ir/index.php/ijph/article/download/13359/5983