The immunity of lambs against Trichostrongylus colubriformis.
D000818:Animals; D000941:Antigens; D005243:Feces / Q000032:analysis; D012737:Sex Factors; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology*; D014251:Trichostrongyloidea / Q000276:immunology / Q000302:isolation & purification; D014252:Trichostrongyloidiasis / Q000276:immunology* / Q000662:veterinary
D000941:Antigens