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Conjugated linoleic acid and trans C18:1 in muscle and adipose tissue of lambs fed supplements containing n-3 polyunsaturated fatty acids

Published online by Cambridge University Press:  20 November 2017

M. Enser ,
A.M. Wachira ,
L.A. Sinclair ,
R.G Wilkinson ,
K.G. Hallett  and
J.D. Wood
M. Enser
Affiliation:
Division of Food Animal Science, School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
A.M. Wachira
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire TN10 8NB, UK
L.A. Sinclair
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire TN10 8NB, UK
R.G Wilkinson
Affiliation:
ASRC, School of Agriculture, Harper Adams University College, Edgmond, Newport, Shropshire TN10 8NB, UK
K.G. Hallett
Affiliation:
Division of Food Animal Science, School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
J.D. Wood
Affiliation:
Division of Food Animal Science, School of Veterinary Science, University of Bristol, Langford, Bristol BS40 5DU, UK
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Extract

Conjugated linoleic acids (CLA) occur in the milk and tissues of ruminants. Although cis-9, trans-11 CLA is an intermediate in the biohydrogenation of linoleic acid in the rumen, duodenal flows of CLA are very low (Scollan et al, 2001) and most CLA appears to be synthesised in tissues from trans-11 C18:1 (vaccenic acid) (Griinari et al, 2000). Trans C18:1 isomers are also produced in the rumen and their amounts are increased when the levels of dietary unsaturated fatty acids are raised. We have investigated the relationship of tissue levels of CLA and trans C18:1 in three breeds of lambs fed supplements of linseed or fish oil to increase trans C18:1.

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2002 , 2002 , pp. 182
Copyright
Copyright © The British Society of Animal Science 2002

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References

Griinari, J.M., Corl, B.A., Lacy, S.H., Chouinard, P.Y., Nurmela, K.V.V. and Bauman, D.E. 2000. Conjugated linoleic acid is synthesised endogenously in lactating dairy cows by Δ9 -desaturase. Journal of Nutrition 130: 2285–2291.CrossRefGoogle Scholar
Scollan, N.D., Choi, N.J., Kim, E.J., Wood, J.D. and Enser, M. 2001. CLA in digesta and longissimus dorsi muscle of beef steers fed full-fat soya or linseed. Proc 1st Int. Conf. on CLA, 59.Google Scholar