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A Comparison of the Efficacy of Proprietary Products in the Treatment of Molybdenum Induced Copper Deficiency

  • N. R. Kendall
  • C. Middlemas
  • H. Maxwell
  • F. Birch
  • D. V. Illingworth
  • D. W. Jackson
  • S. B. Telfer
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Conclusions

Over the 10-week duration of the trial, the bolus gave the best maintenance of copper status and correction of clinical copper deficiency by preventing uptake of free tetrathiomolybdate into the sheep. The needles and injection also corrected the clinical copper deficiency, with the injection increasing the plasma copper and caeruloplasmin more, whilst the needles were better when the CP/PlCu ratio and TCA insoluble copper were assessed. The chelate was better than the drench for copper status although neither could sustain the correction of the clinical deficiency.

Keywords

Copper Deficiency Plasma Amino Acid Copper Status Copper Chelate Plasma Copper 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Mulryan, G. and Mason, J. 1992. Assessment of liver copper status in cattle from plasma copper and plasma copper enzymes. Ann Rech Vét23:233–238.PubMedGoogle Scholar
  2. Mackenzie, A.M., Illingworth, D.V., Jackson, D.W., and Telfer, S.B. 1997. A comparison of methods of assessing copper status in cattle, in: Trace Elements in Man and Animals—9: Proceedings of the Ninth International Symposium on Trace Elements in Man and Animals (P.W.F. Fischer, M.R. Abbé, K.A. Cockell, and R.S. Gibson, eds.) pp. 301–302, NRC Research Press, Ottawa, Canada.Google Scholar
  3. Phillipo, M., Humphries, W.R., Atkinson, T., and Henderson, G.D. 1987. The effect of dietary molybdenum and iron on copper status, puberty, fertility and oestrus cycle in cattle. Journal of Agricultural Science109:321–336.CrossRefGoogle Scholar
  4. Zervas, G.P. 1983. The prevention of copper deficiency in ruminants by means of soluble glass rumen bullets. Ph.D. Thesis, University of Leeds, UK.Google Scholar

Copyright information

© Kluwer Academic Publishers 2002

Authors and Affiliations

  • N. R. Kendall
    • 1
  • C. Middlemas
    • 1
  • H. Maxwell
    • 1
  • F. Birch
    • 1
  • D. V. Illingworth
    • 1
  • D. W. Jackson
    • 1
  • S. B. Telfer
    • 1
  1. 1.Centre for Animal Sciences Leeds Institute of Biotechnology and Agriculture School of BiologyUniversity of LeedsLeedsUK

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