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A sustained-release multi-trace element/vitamin rumen bolus for ewes

Published online by Cambridge University Press:  05 November 2021

N.S. Ritchie ,
R.G. Hemingway  and
J.J. Parkins
N.S. Ritchie
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, United Kingdom
R.G. Hemingway
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, United Kingdom
J.J. Parkins
Affiliation:
Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, United Kingdom
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Extract

A sustained-release rumen bolus system (‘Small-Trace’, Agrimin Ltd., Brigg DN20 0SP) consisting of two polymer-coated cylinders (55mm length, 18mm diam) containing a compressed mixture of normal inorganic trace elements and vitamins had been demonstrated to be an effective long-term copper and selenium supplement for calves > c. 70kg liveweight (Hemingway et al. 1996). A modification of the calf bolus system appropriate for ewes is described using a single bolus together with an inert grinder to promote bolus matrix erosion/dissolution in the reticulum/rumen.

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Programme
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Proceedings of the British Society of Animal Science , Volume 1997 , 1997 , pp. 154
Copyright
Copyright © British Society of Animal Science 1997

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References

Hemingway, R.G., Ritchie, N.S. and Parkins, J.J. 1996. Trace element and vitamin provision to calves by a sustained release rumen bolus. Proceedings of the XIXth World Buiatrics Conference, Edinburgh 409–412.Google Scholar