Hostname: page-component-7479d7b7d-pfhbr Total loading time: 0 Render date: 2024-07-13T13:18:01.204Z Has data issue: false hasContentIssue false

A study of serum mineral changes in lactating Welsh mountain ewes under different grazing conditions with special reference to hypomagnesaemia

Published online by Cambridge University Press:  27 March 2009

J. L. L'Estrange
Affiliation:
Department of Biochemistry and Soil Science, University College of North Wales, Bangor
R. F. E. Axford
Affiliation:
Department of Biochemistry and Soil Science, University College of North Wales, Bangor

Extract

Short-term grazing trials with daily blood sampling were carried out on Welsh mountain ewes in early lactation.

1. A small decrease in serum magnesium levels and a very marked decrease in serum inorganic phosphorus levels, were observed in two groups of four ewes, when one group was transferred from an old pasture to a fertilized (high nitrogen and potash) fresh spring ley, and the others to a similar fresh ley but untreated. There was little effect from the fertilizer treatment on the magnesium, calcium, potassium, sodium or phosphorus content of the herbage.

Type
Research Article
Copyright
Copyright © Cambridge University Press 1964

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Barrentine, B. F. (1955) Agric. Exp. Sta. State Coll. Miss. 18, 1.Google Scholar
Barrentine, B. F. (1959). Magnesium and Agriculture. Proc. Symp. at West Virginia Univ. p. 214.Google Scholar
Bartlet, S., Brown, B. B., Foot, A. S., Head, M. J., Line, C., Rook, J. A. F., Rowland, S. J. & Zundel, J. (1957). J. Agric. Sci. 49, 291.CrossRefGoogle Scholar
Ferguson, W. S. (1932). J. Agric. Sci. 22, 251.CrossRefGoogle Scholar
Fiske, C. H. & Subbarow, Y. (1925). J. Biol. Chem. 66, 375.CrossRefGoogle Scholar
Griffiths, T. W. (1959). J. Brit. Grassl. Soc. 14, 199.CrossRefGoogle Scholar
Halse, K. (1958). Nord. VetMed. 10, 1.Google Scholar
Hemingway, R. G., Inglis, J. S. S. & Ritchie, N. S. (1960). B.V.A. Conference on Hypomagnesaemia, p. 58.Google Scholar
Hemingway, R. G. (1961). J. Brit. Grassl. Soc. 16, 106.Google Scholar
Inglis, J. S. S. (1960). 8th Int. Grassl. Congr., Paper 5B/4.Google Scholar
Inglis, J. S. S., Weipers, M. & Pearce, P. J. (1959). Vet. Rec. 71, 755.Google Scholar
Kamal, T. H. (1960). J. Agric. Fd Chem. 8, 156.CrossRefGoogle Scholar
Kemp, A. & 't Hart, M. L. (1957). Netherlands J. Agric. Sci. 5, 4.CrossRefGoogle Scholar
Kemp, A., Diejs, W. B., Hemkes, O. J. & van Es, A. J. H. (1960). B.V.A. Conference on Hypomagnesaemia, p. 23.Google Scholar
Krackenberger, H. F. & Peterson, W. J. (1954). Bull. U.S. Dep. Agric. St. Co-op Ser. No. 36, 98.Google Scholar
L'Estrange, J. L. & Axford, R. F. E. (1963). Proc. Nutr. Soc. 22, (i).Google Scholar
Michael, D. T. (1961). Vet. Rec. 73, 718.Google Scholar
Michael, D. T. (1962). Vet. Rec. 74, 163.Google Scholar
Middleton, G. & Stuckey, R. E. (1954). Analyst, 79, 138.CrossRefGoogle Scholar
Owen, J. B. & Sinclair, K. B. (1961). Vet. Rec. 73, 1423.Google Scholar
Paterson, D. D. (1939). Statistal Techniques Agric. Res. McGraw-Hill: New York and London.Google Scholar
Patterson, R. & Crichton, C. (1960). J. Brit. Grassl. Soc. 15, 100.CrossRefGoogle Scholar
Rahman, H., MacDonald, P. & Simpson, K. (1960). J. Sci. Fd Agric. 11, 422.CrossRefGoogle Scholar
Robertson, A., Paver, H., Barden, P. & Marr, T. G. (1960). Res. Vet. Sci. 1, 117.CrossRefGoogle Scholar
Rook, J. A. F. & Wood, M. (1960). J. Sci. Fd Agric. 11, 137.Google Scholar
Russel, F. C. & Duncan, D. L. (1956). Tech. Commun. Commonw. Bur. Anim. Nutr. no. 15.Google Scholar
Stewart, J. & Holmes, W. (1953). J. Sci. Fd Agric. 4, 401.CrossRefGoogle Scholar
't Hart, M. L. (1960). B.V.A. Conference on Hypomagnesaemia, p. 88.Google Scholar
Todd, J. R. (1959). Brit. Vet. J. 115, 86.CrossRefGoogle Scholar
Todd, J. R. (1961). J. Agric. Sci. 56, 411.CrossRefGoogle Scholar
Verdeyen, J. (1952). C.R. Rech. I.R.S.I.A. no. 9. Cited by Kemp, A. & 't Hart, M. L. Netherlands J. Agric. Sci. 5, 4.Google Scholar
Watkin, R. B. (1957). J. Brit. Orassl. Soc. 12, 264.CrossRefGoogle Scholar
Wilson, A. A. (1955). J. Comp. Path. 65, 285.CrossRefGoogle Scholar