title: Gastrointestinal parasites of cattle in Nigeria. I. An abattoir survey on the prevalence of trematode parasites.
mesh_terms: D000003:Abattoirs; D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000453:epidemiology*; D003430:Cross-Sectional Studies; D007411:Intestinal Diseases, Parasitic / Q000453:epidemiology / Q000662:veterinary*; D009549:Nigeria; D014201:Trematode Infections / Q000453:epidemiology / Q000662:veterinary*