J Hartmans

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To identify a simple method for assessing the selenium demand in cattle, the relationship between selenium content in whole blood and the concentration of the selenium containing enzyme glutathione peroxidase (EC; GSH-Px) in red blood cells was studied. On six farms with suspected low soil selenium content, blood samples were collected from groups(More)
An inquiry among Animal Health Services supplied data on the causes and incidence of copper poisoning in sheep in the Netherlands as well as on the copper levels of concentrates for sheep in random samples and concentrates causing copper poisoning. Approximately one hunderd sheep die from copper poisoning annually, at least 30 per cent of these deaths being(More)
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