Effect of linseed feeding at similar linoleic acid levels on the fatty acid composition of double-muscled Belgian Blue young bulls

被引：87
|
作者：
Raes, K [1 ]
Haak, L [1 ]
Balcaen, A [1 ]
Claeys, E [1 ]
Demeyer, D [1 ]
De Smet, S [1 ]
机构：
[1] Univ Ghent, Fac Agr & Appl Biol Sci, Dept Anim Prod, B-9090 Melle, Belgium
来源：
MEAT SCIENCE | 2004年 / 66卷 / 02期
关键词：
beef; branched chain fatty acids; conjugated linoleic acid; linseed; polyunsaturated fatty acids;
D O I：
10.1016/S0309-1740(03)00105-0
中图分类号：
TS2 [食品工业];
学科分类号：
0832 ;
摘要：
The effect of including linseed [extruded (EL) or crushed (CL)] instead of whole soybeans (S) in the finishing diet of double-muscled Belgian Blue young bulls on the fatty acid composition of the longissimus thoracis, triceps brachii and subcutaneous fat was investigated. The dietary supply of C18:2n-6 was similar in the three diets, while in the EL and CL diet the supply of C18:3n-3 was equal. No effects of diet on the saturated, monounsaturated and branched chain fatty acids were found. Including linseed in place of whole soybeans increased the total intramuscular n-3 fatty acid content significantly, mainly as C18:3n-3, while no significant effect on the total and individual n-6 fatty acid incorporation was observed in the intramuscular fat. As a consequence of the higher n-3 content, the n-6/n-3 ratio was decreased by linseed feeding. In contrast with the intramuscular fat, the subcutaneous fat showed a significantly increased C18:3n-3 proportion accompanied by a significantly decreased C18:2n-6 proportion when linseed was fed. Diet did not influence the c9t11CLA content in the intramuscular or the subcutaneous fat. (C) 2003 Elsevier Ltd. All rights reserved.
引用
收藏
页码：307 / 315
页数：9
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