A preliminary study on selenium content of forages and local by-products in the Tadla area (Morocco) in connection with ovine nutritional myopathy.

In order to provide epidemiological support to tentative diagnosis of ovine enzootic myopathy in the Tadla area (Morocco), 20 feedstuff samples, representative of ovine rations, were tested for selenium content. All but one samples had a far lower value than the recommended level of 0.1 mg/kg dry matter.