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The effect of duration of feeding oilseeds to dairy cows on the persistency of response in milk fatty acid composition

Published online by Cambridge University Press:  20 November 2017

D. I. Givens ,
C. Rymer ,
A.R. Moss  and
R. Allison
D. I. Givens*
Affiliation:
Nutritional Sciences Research Unit, School of Agriculture, Policy and Development, University of Reading, RG6 6AR, U.K.
C. Rymer
Affiliation:
Nutritional Sciences Research Unit, School of Agriculture, Policy and Development, University of Reading, RG6 6AR, U.K.
A.R. Moss
Affiliation:
Nutritional Sciences Research Unit, School of Agriculture, Policy and Development, University of Reading, RG6 6AR, U.K.
R. Allison
Affiliation:
ADAS Bridgets, Martyr Worthy, Winchester, SO21 1AP, UK.
*
Email: [email protected]
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Extract

There is much interest in the manipulation of the fatty acid composition of milk fat so as to improve its health characteristics in the human diet. In an earlier study there was an indication that the concentration of fatty acids in milk may change with time when feeding whole oilseeds rich in polyunsaturated fatty acids (PUFA). In particular a tendency for an increase in CLA and C18:1 and a reduction in C18:2 and C18:3 concentrations with time were seen. The present study was therefore undertaken to examine the changes in the fatty acid composition of milk from high yielding dairy cows fed diets rich in monounsaturated fatty acids (MUFA) or PUFA over an extended period.

Type
ISAE
Information
Proceedings of the British Society of Animal Science , Volume 2003 , 2003 , pp. 22
Copyright
Copyright © The British Society of Animal Science 2003

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References

Chilliard, Y, Ferlay, A, Mansbridge, RM and Doreau, M, (2000). Ruminant milk plasticity: nutritional control of saturated, polyunsaturated, trans and conjugated fatty acids. Ann Zootech 49: 181–206.Google Scholar