How do n-3 fatty acid (short-time restricted vs unrestricted) and n-6 fatty acid enriched diets affect the fatty acid profile in different tissues of German Simmental bulls?

被引：14

作者：

Herdmann, A. ^{[1
]}

Martin, J. ^{[2
]}

Nuernberg, G. ^{[1
]}

Wegner, J. ^{[1
]}

Dannenberger, D. ^{[1
]}

Nuernberg, K. ^{[1
]}

机构：

[1] FBN Leibniz Inst Farm Anim Biol, Res Unit Muscle Biol & Growth, D-18196 Dummerstorf, Germany

[2] Inst Anim Prod, State Inst Agr & Fishing Res, D-18196 Dummerstorf, Germany

来源：

MEAT SCIENCE | 2010年 / 86卷 / 03期

关键词：

Beef; Fatty acids; Feeding; Restriction; Tissues; CONJUGATED LINOLEIC-ACID; LONGISSIMUS MUSCLE; ADIPOSE-TISSUE; FEEDING SYSTEMS; CONCENTRATE; METABOLISM; QUALITY; HEALTH; LIPIDS; GRASS;

D O I：

10.1016/j.meatsci.2010.06.010

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

This study investigated the effect of n-6 (control group) and n-3 polyunsaturated fatty acids (PUFA) supply (treatment group unrestricted) and a short-time feed restriction for n-3 PUFA supply (treatment group restricted) on intramuscular fat content and the total fatty acid composition in different tissues (muscle, subcutaneous fat, liver, serum and erythrocytes) and lipid classes of intramuscular fat of German Simmental bulls (n=25). Exogenous n-3 PUFA caused a higher concentration of the sum of all single n-3 and n-3 long-chain polyunsaturated fatty acids (LC PUFA) in all analysed tissues. Feed restriction compared to control feeding induced a significant decrease of C18:1cis-9 in the phospholipid fraction of longissimus muscle and in subcutaneous fat The concentration of C18:3n-3 in liver of treatment groups was between 34 and 44% higher compared to control. PUFA in serum and the sum of n-3 PUFA in erythrocytes were significantly higher in both treatment groups compared to control. The synthesis and deposition of n-3 LC PUFA seems to be tissue dependent according to different relative amounts. (C) 2010 The American Meat Science Association. Published by Elsevier Ltd. All rights reserved.

引用

页码：712 / 719

页数：8

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