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  • Title: [Selenium deficiency without clinical symptoms in young cattle on a dairy farm].
    Author: Veling J, Counotte GH.
    Journal: Tijdschr Diergeneeskd; 1995 Aug 15; 120(16):464-5. PubMed ID: 7570544.
    Abstract:
    On a dairy farm a selenium deficiency was diagnosed on the basis of the blood chemistry of heifer calves. Of ten heifers, aged five to fourteen months, six animals had a glutathione peroxidase (GSH-PX) activity lower than 10 U/gHb. A good correlation was found between this low GSH-Px-activity and the selenium concentration in the blood. The animals had no symptoms of selenium deficiency nor elevated CPK levels. On the basis of the vitamin E-concentration in the blood it is postulated that the lack of symptom is mainly caused by the amount of vitamin E in the ration (grass and grass silage).
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