Эпизоотология стронгилеза лошадей в южных регионах России

The greatest infection of horses by Strongylus equinus is established in premountain zone of Kabardinо-Balkarian Republic. Horses in Zol'sk area are the most infected by S. equinus and has made 55,0% infectivity with 178,4±5,2 larvae S. equinus. The foals at the age of the first and second years of grazing were infected by S. equinus in August-September from 28,2 up to 55,0% and from 108±7 up to 177±12 larvae in premountain zone of Kabardino-Balkarian Republic.