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dc.contributor.author Scollan, Nigel D.
dc.contributor.author Monahan, F. J.
dc.contributor.author Moloney, Adrian P.
dc.contributor.author Noci, F.
dc.date.accessioned 2008-12-11T11:53:07Z
dc.date.available 2008-12-11T11:53:07Z
dc.date.issued 2008-12-11
dc.identifier.citation Scollan , N D , Monahan , F J , Moloney , A P & Noci , F 2008 , ' The fatty acid composition of muscle and adipose tissue of steers offered unwilted or wilted grass silage supplemented with sunflower oil and fishoil ' British Journal of Nutrition , pp. 502-513 . en
dc.identifier.other PURE: 100789
dc.identifier.other dspace: 2160/1530
dc.identifier.uri http://hdl.handle.net/2160/1530
dc.identifier.uri http://journals.cambridge.org/download.php?file=%2FBJN%2FBJN97_03%2FS0007114507381361a.pdf&code=5a67e3b362776e00ae713db408d36660 en
dc.description F. Nocia, F. J. Monahana, N. D. Scollan and A. P. Moloney (2007). The fatty acid composition of muscle and adipose tissue of steers offered unwilted or wilted grass silage supplemented with sunflower oil and fishoil. British Journal of Nutrition, 97 pp.502-513 en
dc.description.abstract The effects of the type of grass silage and dietary inclusion of fish oil (FO) on the fatty acid profile of bovine intramuscular and subcutaneous adipose tissue were investigated. Eighty Friesian steers were assigned (n 10) to unwilted or wilted silage, and to one of four rations which contained, per kg, 80 g of sunflower oil and either 0, 10, 20 or 40 g of FO replacing lard. Animals were slaughtered after 108 d and the fatty acid profile of the neutral, polar and total lipid fractions of the M. longissimus dorsi, and the total lipid fraction of the subcutaneous adipose tissue were determined. Wilting of grass prior to ensiling increased the concentration of conjugated linoleic acid (CLA) in intramuscular total lipid (P <0·01), but did not affect the n-6:n-3 PUFA ratio. Increasing FO supply linearly increased (P <0·05) the concentration of the cis-9, trans-11 and trans-10, cis-12 isomers of CLA and trans-11 18 : 1 predominantly in the neutral lipid fraction of intramuscular total lipid, and linearly decreased the n-6:n-3 PUFA ratio. Wilting of grass prior to ensiling increased the concentration of CLA in subcutaneous adipose tissue (P <0·001), while increasing FO supply linearly increased the concentration of cis-9, trans-11 CLA. From a human nutrition perspective, increasing the level of FO in the ration or wilting of grass prior to ensiling appear to modify the fatty acid composition of beef muscle favourably. However, the health implications of associated increases in trans fatty acids remain to be elucidated. en
dc.format.extent 12 en
dc.language.iso eng
dc.relation.ispartof British Journal of Nutrition en
dc.title The fatty acid composition of muscle and adipose tissue of steers offered unwilted or wilted grass silage supplemented with sunflower oil and fishoil en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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