title: Seasonal changes of gastrointestinal nematode populations in yearling beef cattle in Louisiana with emphasis on prevalence of inhibition in Ostertagia ostertagi.
mesh_terms: D000818:Animals; D002417:Cattle; D002418:Cattle Diseases / Q000469:parasitology*; D004064:Digestive System / Q000469:parasitology*; D008145:Louisiana; D009348:Nematoda / Q000502:physiology*; D009349:Nematode Infections / Q000469:parasitology / Q000662:veterinary*; D010029:Ostertagiasis / Q000469:parasitology / Q000662:veterinary*; D012621:Seasons; D014251:Trichostrongyloidea / Q000502:physiology; D014252:Trichostrongyloidiasis / Q000662:veterinary*