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Selenium toxicity
  1. Peter Aitken

    Peter Aitken graduated in 1984 from the Royal Veterinary College, where he stayed on as a small animal house surgeon for a year. He has worked in mixed, large animal and specialist equine practice, both in the UK and in New Zealand, and is currently in mixed practice in south Dorset.


ALTHOUGH selenium toxicosis (selenosis) is a rare form of poisoning, it has been reported worldwide in cattle, sheep, pigs and horses since the 1930s. The condition is caused by the ingestion of accumulator plants or by accidental oversupplementation or parenteral administration. This article reviews the clinical signs, diagnosis and treatment of this condition in the different species affected.

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