Health beneficial long chain omega-3 fatty acid levels in Australian lamb managed under extensive finishing systems

被引：65

作者：

Ponnampalam, Eric N. ^{[1
,2
]}

Butler, Kym L. ^{[3
]}

Jacob, Robin H. ^{[4
]}

Pethick, David W. ^{[5
]}

Ball, Alex J. ^{[6
]}

Edwards, Janelle E. Hocking ^{[7
]}

Geesink, Geert ^{[8
]}

Hopkins, David L. ^{[9
]}

机构：

[1] UNE, CRC Sheep Ind Innovat, Armidale, NSW 2350, Australia

[2] Dept Primary Ind, Werribee, Vic 3030, Australia

[3] Dept Primary Ind, Biometr Grp, Werribee, Vic 3030, Australia

[4] Dept Agr & Food, S Perth, WA 6151, Australia

[5] Murdoch Univ, Div Vet & Biomed Sci, Murdoch, WA 6150, Australia

[6] Univ New England, Meat & Livestock Australia, Armidale, NSW 2351, Australia

[7] Struan Res Ctr, SARDI Livestock Syst, Naracoorte, SA 5271, Australia

[8] Univ New England, Sch Rural & Environm Sci, Armidale, NSW 2351, Australia

[9] Ctr Red Meat & Sheep Dev, NSW Dept Primary Ind, Cowra, NSW 2794, Australia

来源：

MEAT SCIENCE | 2014年 / 96卷 / 02期

关键词：

Lamb production; Meat; Dietary background; Long chain omega-3 fatty acids; FATTY-ACID-COMPOSITION; MEAT QUALITY; SUPPLEMENTATION; PASTURE; CARCASS; LUCERNE; MUSCLE; GROWTH; LIPIDS;

D O I：

10.1016/j.meatsci.2013.04.007

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

摘要：

The variation in levels of the health claimable long chain omega-3 fatty acids, eicosapentaenoic acid (EPA, 20:5n-3) plus docosahexaenoic acid (DHA, 22:6n-3) across production regions of Australia was studied in 5726 lambs over 3 years completed in 87 slaughter groups. The median level of EPA plus DHA differed dramatically between locations and sometimes between slaughters from the same location. The ratio of EPA plus DHA from lambs with high values (97.5% quantile) to lambs with low values (2.5% quantile) also differed dramatically between locations, and between slaughters from the same location. Consistency between years, at a location, was less for the high to low value ratio of EPA plus DHA than for the median value of EPA plus DHA. To consistently obtain high levels of omega-3 fatty acids in Australian lamb, there must be a focus on lamb finishing diets which are likely to need a supply of a-linolenic acid (18:3n-3), the precursor for EPA and DHA. (C) 2013 The Authors. Published by Elsevier Ltd. All rights reserved.

引用

页码：1104 / 1110

页数：7

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