Nutritional muscular dystrophy

Nutritional muscular dystrophy (also called nutritional myopathy or white muscle disease) is a muscle disease of lambs, calves, and foals and adult horses due to deficiency in selenium and/or vitamin E.

The condition is observed in all breeds and sexes of lambs, from birth to three month of age. Its frequency increases with upgrading of sheep breed for increased muscling, especially in areas with selenium deficiency in soils.