Management systems and productivity of hill and upland sheep.
D000034:Abortion, Veterinary / Q000517:prevention & control; D000383:Agriculture; D000531:Altitude; D000821:Animal Feed; D000818:Animals; D001835:Body Weight; D001947:Breeding; D003677:Deficiency Diseases / Q000517:prevention & control / Q000662:veterinary; D005260:Female; D005298:Fertility; D006799:Housing, Animal; D009349:Nematode Infections / Q000517:prevention & control / Q000662:veterinary; D009747:Nutritional Physiological Phenomena; D010944:Plants; D011247:Pregnancy; D012621:Seasons; D012756:Sheep; D012757:Sheep Diseases / Q000517:prevention & control