The effect of resistance on the faecal egg output of sheep and on pasture larval infection.
D000818:Animals; D005243:Feces / Q000469:parasitology*; D010029:Ostertagiasis / Q000276:immunology / Q000469:parasitology / Q000662:veterinary*; D010270:Parasite Egg Count; D006109:Poaceae; D012756:Sheep; D012757:Sheep Diseases / Q000276:immunology* / Q000469:parasitology; D014252:Trichostrongyloidiasis / Q000662:veterinary*