Abstract Our research established that during the study of 254 sheep, 142 were affected by parasitosis (EI was 55.91%), and 112 were free from parasitosis, which was 44.09%. According to the morphological characteristics of eggs isolated from the feces of sick animals, eggs of the order Strongylida, Trichurida, Rhabditida, as well as oocysts of protozoa belonging to the order Sossidiida were found. It was recorded that most often (36.62%) the causative agents of strongyloidosis of the alimentary canal were registered, to a somewhat lesser extent - the causative agents of trichurosis (26.76%), and the least affected by Strongyloides (17.61%) and oocysts of protozoa (19.01%). Ovoscopic studies showed that parasitosis of the alimentary canal of sheep in farm conditions occurred both as part of mixed invasions (81.69%) and as monoinvasions (18.31%). In sheep, the associated course of parasitosis of the digestive tract was most often recorded. Thus, two- and three-component mixed infections were observed in 76.09 and 21.74%, respectively. To a lesser extent (2.17%) combinations of parasitosis with four types of parasites were recorded.