Supplementation with plant-derived oils rich in omega-3 polyunsaturated fatty acids for lamb production

Nguyen, Don V., Malau-Aduli, Bunmi S., Cavalieri, John, Nichols, Peter D., and Malau-Aduli, Aduli E.O. (2018) Supplementation with plant-derived oils rich in omega-3 polyunsaturated fatty acids for lamb production. Veterinary and Animal Science, 6. pp. 29-40.

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Abstract

An overview of the health benefits of omega-3 long-chain (≥C20) polyunsaturated fatty acids (n-3 LC-PUFA) and recent progress in using alpha linolenic acid (ALA) rich sources derived from oilseeds to enhance productive performance, n-3 PUFA profiles and sensory properties of lamb for human consumption is reviewed. Omega-3 LC-PUFA prevents mental health issues and chronic human disorders including cancer, cardiovascular and inflammatory diseases. The median amount of n-3 LC-PUFA consumption is generally lacking in Western diets. More attention is now being paid to the use of innovative nutritional strategies to improve PUFA content in ruminants, which could subsequently increase the content of health-benefitting n-3 LC-PUFA for human consumption. The richest sources of dietary n-3 LC-PUFA are derived from marine products, while forage and oilseeds such as flaxseed, canola, and their oils are abundant in ALA. Numerous studies have shown that dietary ALA increases n-3 LC-PUFA levels of edible tissues. However, other studies concluded that ALA rich supplementation led to no differences in tissue FA profiles because of extensive biohydrogenation of dietary ALA, limited conversion from ALA to n-3 LC-PUFA and low incorporation of n-3 LC-PUFA into edible tissues. Generally, the inclusion of ALA rich sources in lamb diets potentially increases ALA content in lamb. It is proposed that supplementing ruminants with ALA-rich sources at or below 6% can promote n-3 PUFA profiles in lamb and is unlikely to have negative effects on feed intake, growth, carcass and sensory properties.

Item ID: 54945
Item Type: Article (Refereed Research - C1)
Keywords: alpha linolenic acid; omega-3 long-chain polyunsaturated fatty acids; lamb; canola; flaxseed; dietary supplementation
Additional Information:

This is an open access article under the CC BY-NC-ND license.

ISSN: 2451-943X
Funders: Australian Centre for International Agricultural Research (ACIAR), James Cook University
Projects and Grants: ACIAR John Allwright Fellowship
Date Deposited: 08 Aug 2018 05:37
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0702 Animal Production > 070204 Animal Nutrition @ 80%
07 AGRICULTURAL AND VETERINARY SCIENCES > 0702 Animal Production > 070201 Animal Breeding @ 20%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8303 Livestock Raising > 830310 Sheep - Meat @ 100%
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