title: Animal health today--problems of large livestock units. Large livestock units and notifiable disease.
mesh_terms: D000820:Animal Diseases / Q000517:prevention & control* / Q000635:transmission; D000822:Animal Husbandry; D000818:Animals; D002417:Cattle; D011156:Population Density; D012756:Sheep; D013552:Swine; D006113:United Kingdom