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Variation in plasma glucose and free fatty acid concentrations in sheep associated with season, pregnancy and lactation

Published online by Cambridge University Press:  27 March 2009

W. M. F. Leat
W. M. F. Leat
Affiliation:
Department of Biochemistry, A.R.C. Institute of Animal Physiology, Babraham, Cambridge
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Extract

Plasma free fatty acid (FFA) concentrations are generally a reflexion of the extent of mobilization of depot fats (Frederickson & Gordon, 1958). In non-fasted sheep values are low, usually in the region of 100–200 μ-equiv./litre plasma, but occasionally values up to 500 μ-equiv./litre have been noted in fed, unstressed sheep (Leat & Ford, 1966). To obtain information on the variation in the concentration of plasma glucose and FFA, sheep were studied over a period of two seasons.

Type
Short Note
Information
The Journal of Agricultural Science , Volume 82 , Issue 1 , February 1974 , pp. 181 - 184
Copyright
Copyright © Cambridge University Press 1974

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References

REFERENCES

Annison, E. F. (1960). Plasma non-eaterified fatty acids in sheep. Australian Journal of Agricultural Research 11, 58–64.CrossRefGoogle Scholar
Frederickson, D. S. & Gordon, R. S. Jr. (1958). Transport of fatty acids. Physiological Reviews 38, 585–630.CrossRefGoogle Scholar
Huggett, A. St G. & Nixon, D. A. (1957). Use of glucose oxidase, peroxidase and O-dianisidine in determination of blood and urinary glucose. Lancet 2, 368–70.CrossRefGoogle Scholar
Leat, W. M. F. & Ford, E. J. H. (1966). Utilization of free fatty acids by starved and pregnant sheep. Biochemical Journal 101, 317–22.CrossRefGoogle ScholarPubMed
Patterson, D. S. P. (1963). Some observations on the estimation of non esterified fatty acid concentrations in cow and sheep plasma. Research in Veterinary Science 4, 230–7.Google Scholar
Patterson, D. S. P., Burns, K. N., Cunningham, N. F., Herbert, C. N. & Saba, N. (1964). Plasma concentrations of glucose and non-esterified fatty acids (N.E.F.A.) in the pregnant and lactating ewe and the effect of dietary restriction. Journal of Agricultural Science, Cambridge 62, 253–62.CrossRefGoogle Scholar
Reid, R. L. (1950). Studies on the carbohydrate metabolism of sheep. I. The range of blood-sugar values under several conditions. Australian Journal of Agricultural Research 1, 182–99.Google Scholar
Reid, R. L. & Hinks, N. T. (1962 a). Studies on the carbohydrate metabolism of sheep. XVIII. The metabolism of glucose, free fatty acids, ketones, and amino acids in late pregnancy and lactation. Australian Journal of Agricultural Research 13, 1112–23.CrossRefGoogle Scholar
Reid, R. L. & Hinks, N. T. (1962 b). Studies on the carbohydrate metabolism of sheep. XIX. The metabolism of glucose, free fatty acids, and ketones after feeding and during fasting or undernourishment of non pregnant, pregnant and lactating ewes. Australian Journal of Agricultural Research 13, 1124–36.CrossRefGoogle Scholar
Russel, A. J. F. & Doney, J. M. (1969). Observations on the use of plasma free fatty acid concentrations in the determination of maintenance requirements of sheep. Journal of Agricultural Science, Cambridge 72, 59–63.CrossRefGoogle Scholar
Trenkle, A. & Kuhlemeier, K. V. (1966). Relationship of rumen volatile acids, blood glucose and plasma non-esterified fatty acids in sheep. Journal of Animal Science 25, 1111–15.Google Scholar
Trout, D. L., Estes, E. H. Jr & Friedberg, S. J. (1960). Titration of free fatty acids of plasma; a study of current methods and a new modification. Journal of Lipid Research 1, 199–202.CrossRefGoogle Scholar