title: The effect of acquired resistance on adult worms of Trichostrongylus colubriformis in lambs.
mesh_terms: D000818:Animals; D005260:Female; D007110:Immunity, Active; D008297:Male; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology*; D014251:Trichostrongyloidea / Q000254:growth & development* / Q000276:immunology; D014252:Trichostrongyloidiasis / Q000662:veterinary*; D014253:Trichostrongylosis / Q000276:immunology / Q000662:veterinary*; D014611:Vaccination