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The fatty acid composition of muscle fat in Charolais steers: influence of grass versus concentrate feeding

Published online by Cambridge University Press:  23 November 2017

N.D. Scollan ,
K.G. Hallett ,
J.D. Wood  and
I.R. Richardson
N.D. Scollan*
Affiliation:
Institute of Grassland and Environmental Research, Abersywtyth, United Kingdom
K.G. Hallett
Affiliation:
University of Bristol, Bristol, United Kingdom
J.D. Wood
Affiliation:
University of Bristol, Bristol, United Kingdom
I.R. Richardson
Affiliation:
University of Bristol, Bristol, United Kingdom
*
Email:nigel.scollan@bbsrc.ac.uk
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Extract

Nutritional approaches are the most important strategy for altering the fatty acid composition of muscle lipids (Scollan et al., 2006). Grass relative to concentrate feeding increases the content of n-3 polyunsaturated fatty acids (PUFA) resulting in a low n-6:n-3 PUFA ratio. Ruminally protected plant lipids enhance PUFA content very significantly resulting in beneficial P:S and n-6:n-3 ratios (Scollan et al., 2006). This study considered the effects of finishing steers (1) outdoors on grass ± concentrate versus (2) indoors on straw/concentrate ± a protected lipid supplement with one of two levels of vitamin E on the fatty acid composition of the m. longissimus thoracis et lumborum.

Type
Theatre Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2007 , April 2007 , pp. 14
Copyright
Copyright © The British Society of Animal Science 2007

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References

Scollan, N.D., Hocquette, J-F., Nuernberg, K., Dannenberger, D., Richardson, R.I. and Moloney, A.P. (2006). Innovations in beef production systems that enhance the nutritional and health value of beef lipids and their relationship with meat quality. Meat Science, 74, 17–33.Google Scholar