Abstract
AbstractA group of 5 to 7‐week‐old calves presented with unusual clinical signs that included facial paralysis and ear droop. Postmortem examination of a single calf ruled out infectious causes and confirmed that the calf had ingested a gritty slag, a by‐product from the steel industry. The slag was being used on a farm on grazing land but had been stored in such a way that the calves had been exposed. Analysis of the ingested material and tissue analysis confirmed the presence of vanadium at concentrations likely to be significant. A literature search confirmed two other similar cases in Sweden and New Zealand where steel slag exposure had been associated with similar clinical signs; in the former case, these had been attributed to acute vanadium toxicity.
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