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Effects of level and form of dietary zinc on dairy cow performance and health

Published online by Cambridge University Press:  23 November 2017

C. M. Atkin ,
A. M. Mackenzie ,
D. Wilde  and
L. A. Sinclair
C. M. Atkin*
Affiliation:
Harper Adams University College, Newport, Shropshire. TF10 8NB, United Kingdom
A. M. Mackenzie
Affiliation:
Harper Adams University College, Newport, Shropshire. TF10 8NB, United Kingdom
D. Wilde
Affiliation:
Alltech (UK) Ltd, Alltech House, Ryhall Road, Stamford, Lincs. PE9 1TZ, United Kingdom
L. A. Sinclair
Affiliation:
Harper Adams University College, Newport, Shropshire. TF10 8NB, United Kingdom
*
Email:[email protected]
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Extract

It is well established that zinc is an essential micro-nutrient required to maintain health and performance in dairy cows (Underwood and Suttle, 2004). Cattle diets are traditionally supplemented with inorganic minerals (e.g. zinc oxide), but these may be poorly absorbed, resulting in an economic and environmental cost due to excess minerals being excreted. It is claimed organically bound minerals are able to resist interaction before and at the absorption site in the small intestine (Power, 2006), which may result in a lower dietary inclusion rate being required. The objective of the current experiment was to investigate the effect of an organically bound source of Zn as a replacement for inorganic Zn on dairy cow health and performance when supplemented at and below the recommended level.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 101
Copyright
Copyright © The British Society of Animal Science 2007

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References

National Research Council. 2001. Nutrient Requirements of Dairy Cattle, Seventh Revised Edition, National Academy Press.Google Scholar
Power, R. 2006 Organic mineral absorption: molecular mimicry or modified mobility. Proceedings of Alltech’s 22nd International Symposium. Nottingham University Press. 359–365.Google Scholar
Underwood, E. J. and Suttle, N. F. 2004. The Mineral Nutrition of Livestock. Third Edition, Commonwealth Agricultural Bureaux International Publishing.Google Scholar