title: Badger culling: Defra gives details of gassing trials.
mesh_terms: D000827:Animal Welfare / Q000592:standards; D000818:Animals; D002417:Cattle; D005740:Gases; D045969:Mustelidae; D011155:Population Control / Q000379:methods*; D014380:Tuberculosis, Bovine / Q000517:prevention & control; D006113:United Kingdom
chemical_list: D005740:Gases