title: Southern Ontario survey of eyeworms, Thelazia gulosa and Thelazia lacrymalis in cattle and larvae of Thelazia spp. in the face fly, Musca autumnalis.
abstract: An eight month survey of bovine eyes from an abattoir in southern Ontario revealed the presence of the eyeworms Thelazia gulosa and T. lacrymalis in 32% of the cattle. In the same area, 3% of the natural population of face flies (Musca autumnalis) harbored larval eyeworms. A review of the literature is provided.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology*; D004175:Diptera / Q000469:parasitology*; D005123:Eye / Q000469:parasitology*; D005128:Eye Diseases / Q000469:parasitology / Q000662:veterinary; D006790:Host-Parasite Interactions; D007814:Larva; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D013151:Spiruroidea / Q000302:isolation & purification*; D013802:Thelazioidea / Q000302:isolation & purification* / Q000502:physiology