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The effectiveness of copper oxide powder as a component of a sustained-release multi-trace element and vitamin rumen
J J Parkins1, R G Hemingway, D C Lawson
1Veterinary Animal Husbandry Department, Glasgow University Veterinary School, Bearsden, Scotland.
The British Veterinary Journal
|November 1, 1994
Abstract:
Copper oxide powder administered in the form of two experimentally produced sustained-release rumen boluses significantly increased blood and liver copper concentrations in growing sheep. It was estimated that 7% of the copper released was stored in the liver. In two farm observation trials administration of two standard production boluses significantly increased blood copper concentrations in out-wintered suckler cows during late pregnancy and early lactation, and in growing cattle at grass in the summer over periods of at least 170 and 123 days, respectively.