سید عبدالحمید حسینی - Department of clinical sciences, Faculty of Veterinary Medicine, University of Tabriz
سعید مستوفی - Laboratory staff, Veterinary Office of East Azerbaijan Province, Tabriz, Iran
محمد طلوعی - Department of clinical sciences . faculty of veterinary medicine. university of Tabriz

Parasitic infestation is one of the most common problem in horses breeding worldwide as in Iran. Oxyuris equi belongs to Nematodes and involves gastrointestinal tract and perineal region of equines. In this study, occurrence of an unusual form of Oxyuriasis in an adult horse in Iran, Tabriz is reported. In autumn of ۲۰۱۸ a Kurd stallion with symptoms of itching and some deep and corrosive lesions in perineal region and around anus was examined at one of equestrian clubs of Tabriz province. Vital signs of animal were normal. The wounds had spread around perineum, above the extremities and even below the tail, a big corrosive and progressive lesion had developed. After collecting feces samples and parasitological test, eggs and even larvae of Oxyuris equi were observed. According to the clinical and parasitological examinations, involvement of Oxyuriasis was considered. Treatment of the disease started with anti-parasitic drugs such as pyrantel, oxybendazole and ivermectin, although the lesions were disinfected with iodide solution, vitamin A+D ointment and Tetracycline. The lesions were recovered over than ۹۰%, about ۲۰ days after treatment. As in the report, oxyuriasis can be seen unusual form as corrosive and progressive lesions in perineal region in even adult horses.

Oxyuris equi, parasitic infestation, horse, corrosive wound