Hostname: page-component-7479d7b7d-pfhbr Total loading time: 0 Render date: 2024-07-10T13:20:37.867Z Has data issue: false hasContentIssue false
  • English
  • Français

Studies on ewe's milk

VI. The content of some trace elements

Published online by Cambridge University Press:  27 March 2009

W. M. Ashton ,
Myrtle Williams  and
Jean Ingleton
W. M. Ashton
Affiliation:
Department of Biochemistry and Agricultural Biochemistry
Myrtle Williams
Affiliation:
Department of Biochemistry and Agricultural Biochemistry
Jean Ingleton
Affiliation:
Department of Agriculture, University College of Wales, Aberystwyth
Get access Rights & Permissions [Opens in a new window]

Summary

This paper reports a continuation of previous work on the mineral constituents of ewe's milk, in particular copper, iron, manganese and zinc. Milk taken at weekly intervals from four groups of Clun Forest and Suffolk x Clun Forest ewes was studied over lactations varying from 6 to 12 weeks. The copper content showed a marked decline as the lactation advanced, while there was no consistent trend in iron content. Maximum, minimum and mean values for iron and copper are given for the sheep in each group.

Manganese was determined in the milk from two groups and zinc in. that from one group of ewes. There were significant differences in weekly manganese content in both groups, but no consistent trend as lactation advanced. Zinc content showed no significant differences from week to week, but the milk of one ewe was consistently very much lower in zinc than that of the other five sheep.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 88 , Issue 3 , June 1977 , pp. 529 - 531
Copyright
Copyright © Cambridge University Press 1977

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

Ashton, W. M. & Yousef, I. M. (1966). A study of the composition of ewe's milk. II. Mineral constituents. Journal of Agricultural Science, Cambridge 67, 77–80.CrossRefGoogle Scholar
Beck, A. B. (1941). Studies on the copper content of the milk of sheep and of cows. Australian Journal of Experimental Biology and Medical Science 19, 145–50. Quoted by Nutrition Abstracts and Reviews(1942), 11, Abs. 1910.CrossRefGoogle Scholar
Cornfield, A. H. & Pollard, A. G. (1950). The use of tetramethyldiaminodiphenyl-methane for the determination of small amounts of manganese in plant material and soil extracts. Journal of the Science of Food and Agriculture 1, 107–9.CrossRefGoogle Scholar
King, B. L. & Dunkley, W. L. (1959). Belation of natural copper in milk to incidence of spontaneous oxidised flavour. Journal of Dairy Science 42, 420–7.CrossRefGoogle Scholar
Koppejan, C. A. & Mulder, H. (1953). The copper contents of milk. XIIth International Dairy Congress. Proceedings 3, 1400–1.Google Scholar
Morgan, M. E. (1964). The determination of copper in milk by atomic absorption spectroscopy. Atomic Absorption Newsletter, 21, 1–3. Perkin-Elmer Corporation, Norwalk, Connecticut.Google Scholar
Perrin, D. R. (1958). The chemical composition of the colostrum and milk of the ewe. Journal of Dairy Research 25, 70–4.CrossRefGoogle Scholar
Polidori, F. (1960). Contributo alia conoscenza del contenuto in ferro e rame del latte di vacca e di pecora. (Iron and copper in cow's and sheep's milk.) Ann. Sper. agrar 14, 1009–30. Quoted by Nutrition Abstracts and Reviews (1962), Abs. 1848.Google Scholar
Poulton, S. G. & Ashton, W. M. (1972). Studies on ewe's milk. V. The effect of high cereal diets on ewes and on the yield of milk and milk constituents. Journal of Agricultural Science, Cambridge 78, 203–13.CrossRefGoogle Scholar
Underwood, E. J. (1971). Trace Elements in Human and Animal Nutrition, 3rd edn, pp. 25, 217. London: Academic Press.Google Scholar