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Effect of breed and diet on polyunsaturated fatty acid composition of longissimus dorsi muscle in beef steers

Published online by Cambridge University Press:  20 November 2017

N.J. Choi ,
M. Enser ,
J.D. Wood  and
N.D. Scollan
N.J. Choi
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK Division of Food Animal Science, University of Bristol, Langford, Bristol BS40 5DU, UK
M. Enser
Affiliation:
Division of Food Animal Science, University of Bristol, Langford, Bristol BS40 5DU, UK
J.D. Wood
Affiliation:
Division of Food Animal Science, University of Bristol, Langford, Bristol BS40 5DU, UK
N.D. Scollan
Affiliation:
Institute of Grassland and Environmental Research, Plas Gogerddan, Aberystwyth SY23 3EB, UK
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Extract

Previous studies have demonstrated that even though the polyunsaturated fatty acids (PUFA) in linseed (principally α-linolenic acid, C18:3n-3) were largely biohydrogenated in the rumen significant improvements in the PUFA content of the resultant beef were observed (Choi et al., 1997, Scollan et al., 1997). Treating whole linseed with formaldehyde should help to reduce the degree of biohydrogenation of C18:3n-3, resulting in higher responses at the muscle level. Genetic variation may also play a role in regulating the PUFA content of beef. The objectives of this study were to assess the effect of different sources of dietary PUFA, including formaldehyde treated whole linseed on muscle fatty acids and to determine whether breeds differ in their ability to incorporate n-3 PUFA into muscle lipids.

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Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 41
Copyright
Copyright © The British Society of Animal Science 1999

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References

Choi, N.J., Kim, E.J., Maeng, W.J., Neville, M.A., Enser, M., Wood, J.D. and Scollan, N.D. 1997. Rumen biohydrogenation of fatty acids from different sources of fat. Proceedings of the British Society of Animal Science. p19 Google Scholar
Scollan, N.D., Fisher, W.J., Davies, D.W.R., Fisher, A.V., Enser, M. and Wood, J.D. 1997. Manipulating the fatty acid composition of muscle in beef cattle. Proceedings of the British Society of Animal Science. p20 Google Scholar