title: Performance of lambs on a clean grazing system compared with lambs on a traditional system.
authors.affiliation: Macaulay Land Use Research Institute, Penicuik, Midlothian.
authors.forename: A R
authors.initials: AR
authors.lastname: Fawcett
authors.forename: A J
authors.initials: AJ
authors.lastname: Macdonald
mesh_terms: D000821:Animal Feed; D000818:Animals; D005243:Feces / Q000469:parasitology; D009349:Nematode Infections / Q000503:physiopathology / Q000662:veterinary*; D010270:Parasite Egg Count / Q000662:veterinary; D012756:Sheep / Q000254:growth & development*; D012757:Sheep Diseases / Q000469:parasitology* / Q000503:physiopathology