Tags

Type your tag names separated by a space and hit enter

When balanced for precursor fatty acid supply echium oil is not superior to linseed oil in enriching lamb tissues with long-chain n-3 PUFA.
Br J Nutr. 2012 Jul 14; 108(1):71-9.BJ

Abstract

Vegetable oils containing stearidonic acid (SDA, 18 : 4n-3) are considered better precursors of long-chain n-3 PUFA (LC n-3 PUFA) than those with only α-linolenic acid (ALA, 18 : 3n-3). The present study re-examined this premise using treatments where added ALA from linseed oil was matched with ALA plus SDA from echium oil. Lambs (n 6) were abomasally infused with saline (control (C), 25 ml), echium oil low (EL, 25 ml), echium oil high (EH, 50 ml), linseed oil low (LL, 25 ml) or linseed oil high (LH, 50 ml) for 4 weeks. The basal ration used was identical across all treatments. EPA (20 : 5n-3) in meat increased from 6·5 mg in the C lambs to 16·8, 17·7, 13·5 and 11·7 (SEM 0·86) mg/100 g muscle in the EL, EH, LL and LH lambs, respectively. For muscle DPA (docosapentaenoic acid; 22 : 5n-3), the corresponding values were 14·3, 22·2, 18·6 18·2 and 19·4 (SEM 0·57) mg/100 g muscle. The DHA (22 : 6n-3) content of meat was 5·8 mg/100 g in the C lambs and ranged from 4·53 to 5·46 (SEM 0·27) mg/100 g muscle in the oil-infused groups. Total n-3 PUFA content of meat (including ALA and SDA) increased from 39 mg to 119, 129, 121 and 150 (SEM 12·3) mg/100 g muscle. We conclude that both oil types were effective in enhancing the EPA and DPA, but not DHA, content of meat. Furthermore, we conclude that, when balanced for precursor n-3 fatty acid supply, differences between linseed oil and echium oil in enriching meat with LC n-3 PUFA were of little, if any, nutritional significance.

Authors+Show Affiliations

Australian Cooperative Research Centre for Sheep Industry Innovation, Armidale, NSW, Australia. soressa.kitessa@csiro.auNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Controlled Clinical Trial
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

22011528

Citation

Kitessa, Soressa M., et al. "When Balanced for Precursor Fatty Acid Supply Echium Oil Is Not Superior to Linseed Oil in Enriching Lamb Tissues With Long-chain N-3 PUFA." The British Journal of Nutrition, vol. 108, no. 1, 2012, pp. 71-9.
Kitessa SM, Young P, Nattrass G, et al. When balanced for precursor fatty acid supply echium oil is not superior to linseed oil in enriching lamb tissues with long-chain n-3 PUFA. Br J Nutr. 2012;108(1):71-9.
Kitessa, S. M., Young, P., Nattrass, G., Gardner, G., Pearce, K., & Pethick, D. W. (2012). When balanced for precursor fatty acid supply echium oil is not superior to linseed oil in enriching lamb tissues with long-chain n-3 PUFA. The British Journal of Nutrition, 108(1), 71-9. https://doi.org/10.1017/S0007114511005411
Kitessa SM, et al. When Balanced for Precursor Fatty Acid Supply Echium Oil Is Not Superior to Linseed Oil in Enriching Lamb Tissues With Long-chain N-3 PUFA. Br J Nutr. 2012 Jul 14;108(1):71-9. PubMed PMID: 22011528.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - When balanced for precursor fatty acid supply echium oil is not superior to linseed oil in enriching lamb tissues with long-chain n-3 PUFA. AU - Kitessa,Soressa M, AU - Young,Paul, AU - Nattrass,Greg, AU - Gardner,Graham, AU - Pearce,Kelly, AU - Pethick,David W, Y1 - 2011/10/20/ PY - 2011/10/21/entrez PY - 2011/10/21/pubmed PY - 2012/10/31/medline SP - 71 EP - 9 JF - The British journal of nutrition JO - Br. J. Nutr. VL - 108 IS - 1 N2 - Vegetable oils containing stearidonic acid (SDA, 18 : 4n-3) are considered better precursors of long-chain n-3 PUFA (LC n-3 PUFA) than those with only α-linolenic acid (ALA, 18 : 3n-3). The present study re-examined this premise using treatments where added ALA from linseed oil was matched with ALA plus SDA from echium oil. Lambs (n 6) were abomasally infused with saline (control (C), 25 ml), echium oil low (EL, 25 ml), echium oil high (EH, 50 ml), linseed oil low (LL, 25 ml) or linseed oil high (LH, 50 ml) for 4 weeks. The basal ration used was identical across all treatments. EPA (20 : 5n-3) in meat increased from 6·5 mg in the C lambs to 16·8, 17·7, 13·5 and 11·7 (SEM 0·86) mg/100 g muscle in the EL, EH, LL and LH lambs, respectively. For muscle DPA (docosapentaenoic acid; 22 : 5n-3), the corresponding values were 14·3, 22·2, 18·6 18·2 and 19·4 (SEM 0·57) mg/100 g muscle. The DHA (22 : 6n-3) content of meat was 5·8 mg/100 g in the C lambs and ranged from 4·53 to 5·46 (SEM 0·27) mg/100 g muscle in the oil-infused groups. Total n-3 PUFA content of meat (including ALA and SDA) increased from 39 mg to 119, 129, 121 and 150 (SEM 12·3) mg/100 g muscle. We conclude that both oil types were effective in enhancing the EPA and DPA, but not DHA, content of meat. Furthermore, we conclude that, when balanced for precursor n-3 fatty acid supply, differences between linseed oil and echium oil in enriching meat with LC n-3 PUFA were of little, if any, nutritional significance. SN - 1475-2662 UR - https://www.unboundmedicine.com/medline/citation/22011528/When_balanced_for_precursor_fatty_acid_supply_echium_oil_is_not_superior_to_linseed_oil_in_enriching_lamb_tissues_with_long_chain_n_3_PUFA_ L2 - https://www.cambridge.org/core/product/identifier/S0007114511005411/type/journal_article DB - PRIME DP - Unbound Medicine ER -