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Plasma inorganic iodine values in beef cows following rumen bolus or dietary mineral supplementation

Published online by Cambridge University Press:  20 November 2017

J. J. Parkins ,
R. G. Hemingway ,
G. Fishwick  and
N. S. Ritchie
J. J. Parkins
Affiliation:
Department of Veterinary Clinical Studies, Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, U.K
R. G. Hemingway
Affiliation:
Department of Veterinary Clinical Studies, Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, U.K
G. Fishwick
Affiliation:
Department of Veterinary Clinical Studies, Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, U.K
N. S. Ritchie
Affiliation:
Department of Veterinary Clinical Studies, Glasgow University Veterinary School, Bearsden, Glasgow G61 1QH, U.K
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Extract

Plasma inorganic iodine concentrations (PII, ng/ml) are increasingly used in preference to plasma thyroxine concentrations (T4) for diagnostic purposes. PII represents current dietary iodine intake and responds rapidly (within a very few days) to increases and decreases in dietary iodine (I) intake by cows (Rogers and Mee, 1966). This study measured changes in PII in response to different I intakes supplied by contrasting methods to beef cows during late pregnancy and early lactation.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 136
Copyright
Copyright © The British Society of Animal Science 2001

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References

McCoy, M. A., Smyth, J. A., Ellis, W. A, Arthur, J. R. and Kennedy, D. G. 1997. Experimental reproduction of iodine deficiency in cattle. Veterinary Record 141: 544–547.CrossRefGoogle ScholarPubMed
Rogers, P. A. M. and Mee, J. F. 1966. Trace element supplementation of cows. Part 1. Effects of oral copper, selenium and iodine supplements on tissue status. XIX World Buiatrics Conference, Edinburgh. 2: 394–397.Google Scholar