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Changes in plasma concentrations of glucose, free fatty acids, ketone bodies, thyroxine and insulin of lactating beef cows in relation to time of feeding and energy status

Published online by Cambridge University Press:  02 September 2010

C.R.E. Coggins  and
A.C. Field
A.C. Field
Affiliation:
Moredun Research Institute408 Gilmerton Road, Edinburgh, EH17 7JH
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Extract

The economic implications of sub-standard performance in animal production which result from the increased incidence of metabolic disorders such as bovine ketosis and ovine pregnancy toxaemia, and accompanying reduced reproductive performance, plus the detrimental effects of undernutrition, are well known. Together they pinpoint the desirability of being able to assess the adequacy of rations in supplying nutrients, particularly energy, to provide an appropriate diet. The assessment of nutritional status is becoming increasingly important as farmers attempt to maintain enterprise profitability by either reducing feed costs and maintaining production, or by maintaining feed costs and increasing overall production, or by a combination of these two procedures.

Type
Research Article
Information
BSAP Occasional Publication , Volume 1: The Use of Blood Metabolites in Animal Production , January 1978 , pp. 41 - 47
Copyright
Copyright © British Society of Animal Production 1978

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References

REFERENCES

Adler, J.H. 1970. Theoretical quantitative approach to the mechanism of hypoglycaemic ketosis in ruminants. J. theor. Biol. 28: 101–109.CrossRefGoogle Scholar
Allcroft, W.M. 1933. Diurnal variations in the blood–sugar level of the lactating cow. Biochem. J. 27: 1820–1823.CrossRefGoogle ScholarPubMed
Agricultural Research Council. 1965. The Nutrient Requirements of Livestock. No. 2, Ruminants. Agricultural Research Council, London.Google Scholar
Bowden, D.M. 1971. Non-esterified fatty acids and ketone bodies in blood as indicators of nutritional status in ruminants: a review. Can. J. Anim. Sci. 51: 1–15.CrossRefGoogle Scholar
Bowden, D.M. 1973. Effects of postfeeding interval on blood constituents related to energy metabolism in nonpregnant Angus and Hereford heifers. Can. J. Anim. Sci. 53: 641–646.CrossRefGoogle Scholar
Coggins, C.R.E. and Field, A.C. 1976. Diurnal variation in the chemical composition of plasma from lactating beef cows on three dietary energy intakes. J. agric. Sci., Camb. 86: 595–602.CrossRefGoogle Scholar
Erfle, J.D., Fisher, L.J. and Sauer, F.D. 1974. Interrelationships between blood metabolites and an evaluation of their use as criteria of energy status of cows in early lactation. Can. J. Anim. Sci. 54: 293–303.CrossRefGoogle Scholar
Fisher, L.J., Donnelly, P.E., Hutton, J.B. and Duganzich, D.M. 1975. Relationships between levels of feeding and certain blood metabolites in dairy cows in mid lactation. J. agric. Sci., Camb. 84: 29–57.CrossRefGoogle Scholar
Hales, C.N. and Handle, P.J. 1965. Immunoassay of insulin with insulinantibody precipitate. Biochem. J. 88: 137–146.CrossRefGoogle Scholar
Holmes, J.H.G. and Lambourne, L.J. 1970. The relation between plasma free fatty acid concentration and the digestible energy intake of cattle. Res, vet. Sci. 11: 27–36.CrossRefGoogle ScholarPubMed
Hove, K. 1974. Nocturnal plasma insulin levels in cows with varying levels of plasma ketone bodies; relation to plasma sugar and acetoacetate. Acta Endocr., Copnh. 76: 513–524.Google ScholarPubMed
Hove, K. and Blom, A.K. 1973. Plasma insulin and growth hormone in dairy cows; diurnal variation and relation to food intake and plasma sugar and acetoacetate levels. Acta Endocr., Copnh. 73: 289–303.Google ScholarPubMed
Payne, J.M., Dew, S.M., Manston, R. and Faulks, M. 1970. The use of a metabolic profile test in dairy herds. Vet. Rec. 87: 150–158.CrossRefGoogle ScholarPubMed
Radloff, H.D., Schultz, L.H. and Hoekstra, W.G. 1966. Relationship of plasma free fatty acids to other blood components in ruminants under various physiological conditions. J. Dairy Sci. 49: 179–182.CrossRefGoogle ScholarPubMed
Reid, R.L. and Hinks, N.T. 1962. 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. Aust. J. agric. Res. 13: 1124–1136.CrossRefGoogle Scholar
Russel, A.J.F., Doney, J.M. and Reid, R.L. 1967. The use of biochemical parameters in controlling nutritional state in pregnant ewes, and the effect of undernourishment during pregnancy on lamb birth–weight. J. agric. Sci., Camb. 68: 351–358.CrossRefGoogle Scholar
Seth, J., Rutherford, F.J. and McKenzie, I. 1975. Solid–phase radioimmunoassay of thyroxine in untreated serum. Clin. Chem. 21: 1406–1413.CrossRefGoogle ScholarPubMed
Somerville, S.H., Lowman, B.G. and Edwards, R.A. 1976. Effects of plane of nutrition during lactation on the milk yield and weight change of suckled beef cows. Anim. Prod. 22: 141 (Abstr.).Google Scholar