Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-29T19:30:38.291Z Has data issue: false hasContentIssue false
  • English
  • Français

Magnesium absorption in mature ewes infused intrarumenally with magnesium chloride

Published online by Cambridge University Press:  09 March 2007

A. F. McLean ,
W. Buchan  and
D. Scott
A. F. McLean
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
W. Buchan
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
D. Scott
Affiliation:
Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

1. The effects of magnesium Supplementation on Mg absorption proximal and distal to the pylorus in ewes maintained on a grass diet were investigated using a combination of balance, digesta flow and electropotential Measurements.

2. Three mature ewes each received by intrarumenal infusion a supplement of 0, 1, 2 and 3g Mg/d in sequence over four 10-d periods.

3. Net Mg absorption distal to the pylorus took place down its electrochemical gradient, although the quantity absorbed remained small during the control and first infusion periods.

4. The bulk of Mg absorption occurred before the pylorus and, during the control and first infusion periods, took place against its electrochemical gradient. The net Mg absorption proximal to the pylorus rose with declining efficiency as Mg intake was increased. It is suggested that saturation of the absorption process at this site was occurring.

Type
Papers on General Nutrition
Information
British Journal of Nutrition , Volume 52 , Issue 3 , November 1984 , pp. 523 - 527
Copyright
Copyright © The Nutrition Society 1984

References

REFERENCES

Ben-Ghedalia, D., Tagari, H., Zamwell, S. & Bondi, A. (1975). British Journal of Nutrition 33, 87–94.Google Scholar
Blaxter, K. L. & McGill, R. (1956). Veterinary Reviews & Annotations 2, 35–55.Google Scholar
Brown, R. C., Care, A. D. & Pickard, D. W. (1978). Journal of Physiology 276, 62–63.Google Scholar
Dobson, A. (1959). Journal of Physiology 146, 235–251.Google Scholar
Field, A. C. & Munro, C. S. (1977). Journal of Agricultural Science 89, 365–371.Google Scholar
Gitelman, H., Hurt, C. & Lutwak, L. (1966). Analytical Biochemistry 14, 106–120.Google Scholar
Grace, N. D. & MacRae, J. C. (1972). British Journal of Nutrition 27, 51–55.CrossRefGoogle Scholar
Malawar, S. J. & Powell, D. F. (1967). Gastroenterology 53, 250–256.Google Scholar
Martens, H. (1983). British Journal of Nutrition 49, 153–158.Google Scholar
Martens, H., Harmeyer, J. & Breves, G. (1976). In Nuclear Techniques in Animal Production and Health, pp. 261–266. Vienna: International Atomic Energy Agency.Google Scholar
Martens, H., Harmeyer, J. & Michel, H. (1978). Research in Veterninary Science 24, 161–168.CrossRefGoogle Scholar
Martens, H. & Rayssiguier, Y. (1980). In Digestive Physiology and Metabolism in Ruminants, pp. 447–466 [Ruckebusch, Y. and Thivend, P., editors]. Lancaster: MTP Press Ltd.Google Scholar
Strachan, N. H. & Rook, J. A. F. (1975). Proceedings of the Nutrition Society 34, 11A–12A.Google Scholar
Tomas, F. M. & Potter, B. J. (1976). Australian Journal of Agricultural Research 27, 437–446.CrossRefGoogle Scholar
Walser, M. (1961). Journal of Clinical Investigation 40, 723–730.Google Scholar