a survey of helminth infection of turkmen horses in jargalan region, north khorasan

to study the parasitic infection of turkmen horses in this region, faecal and blood samples collected from 46 randomly selected turkmen horses (about 10% of population: 30 male and 16 female). faecal egg counts (clayton lane method), faecal culture and modified knott test were performed. no microfilaria was observed in blood samples. nematode eggs (cyathostominae) were found in 26 faecal samples (0-650 eggs/gr, 62.1 21.43). no significant differences were found between infected and uninfested horses in age. also, there were no significant correlation between age and the intensity of infection. no significant difference, in the intensity of infection, was found between treated and untreated groups. but a significant in sex horses (p= 0.046).