Eyeworms (Thelazia lacrymalis) in one- to four-year-old Thoroughbreds at necropsy in Kentucky (1984 to 1985).
From Mar 1, 1984, to Feb 28, 1985, both eyes from 189 one- to four-year-old Thoroughbreds (88 males, 90 females, and 11 geldings) in Kentucky were examined at necropsy for eyeworms. Thelazia lacrymalis was recovered from 45% of 1-year-old horses, 26% of 2-year-old horses, 45% of 3-year-old horses, and 50% of 4-year-old horses; overall, 43% of 1- to 4-year old horses were infected. Prevalence of eyeworms in horses in the present study was comparable with that in horses of similar ages examined at necropsy in Kentucky in 2 previous studies (1975 to 1976 and in 1979), except for the lower percentage of infected 2-year-old Thoroughbreds in the present study.
D000818:Animals; D005260:Female; D006734:Horse Diseases / Q000453:epidemiology* / Q000473:pathology; D007629:Kentucky; D008297:Male; D009349:Nematode Infections / Q000453:epidemiology / Q000473:pathology / Q000662:veterinary*; D009919:Orchiectomy; D013802:Thelazioidea / Q000302:isolation & purification*