Hill pastoral resources and sheep production.
D000383:Agriculture; D000821:Animal Feed; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D003365:Costs and Cost Analysis; D004467:Economics; D006799:Housing, Animal; D010945:Plants, Edible; D006109:Poaceae; D012098:Reproduction; D012621:Seasons; D012756:Sheep; D006113:United Kingdom