WHITE MUSCLE DISEASE
VITAMIN E and/or SELENIUM DEFICIENCY
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Stiff-lamb or white-muscle disease is caused by a lack of vitamin E and selenium.  It can be prevented by making sure the diet of ewes and lambs contains adequate selenium.  It may also be prevented by injecting all lambs with vitamin E and selenium shortly after birth.  Affected lambs become stiff and cannot walk or nurse properly and die of starvation.  Treating affected animals with vitamin E and selenium injections may reuslt in recovery.
There are Selenium deficienct areas within the country, predominately in the states of Wisconsin, Illinois, Indiana, Michigan and Ohio in the north central region of the United States. Selenium is also deficient in the Northwest, Washington and Oregon.

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