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Dietary n-3 and n-6 fatty acids alter avian metabolism: molecular-species composition of breast-muscle phospholipids.
Br J Nutr. 2002 Jul; 88(1):19-28.BJ

Abstract

The effects of diets high in n-3 polyunsaturated fatty acids (PUFA; provided by fish oil), n-6 PUFA (sunflower oil) or in more-saturated fatty acids (tallow) on the distribution of subclasses of choline phospholipids (PC) and ethanolamine phospholipids (PE) from the breast muscle of broiler chickens were examined. Supplementation with the different fatty acids had no effect on the distribution of phospholipid subclasses. Feeding sunflower oil or tallow gave a molecular-species profile similar in both fatty acid subtype and proportion. In the diacyl PC phospholipids, 16 : 0-18 : 1n-9 and 16 : 0-18 : 2n-6 accounted for approximately 60 % of the total molecular species, whereas for the alkylenyl PC the predominant species were 16 : 0-18 : 1n-9 and 16 : 0-20 : 4n-6. Of the diacyl PE the dominant species was 18 : 0-20 : 4n-6 which accounted for 50 % of the molecular species, and of the alkylenyl PE the dominant species were 16 : 0-18 : 1n-9, 16 : 0-20 : 4n-6 and 18 : 0-20 : 4n-6. Supplementation with fish oil significantly increased levels of both eicosapentaenoic acid (20 : 5n-3) and docosahexaenoic acid (22 : 6n-3) in PC and PE when compared with either sunflower oil or tallow supplementation. The increase in the n-3 PUFA incorporation was associated with a corresponding decrease in the proportion of arachidonic acid (20 : 4n-6) in both PC and PE. Different dietary fats induce different patterns of fatty acid incorporation and substitution in the sn-2 position of the diacyl and alkylenyl PC and PE of avian breast muscle, and this finding is indicative of selective acyl remodelling in these two phospholipids.

Authors+Show Affiliations

Faculty of Veterinary Science, University of Sydney, Camden, NSW 2570, Australia. ronaldn@camden.usyd.edu.auNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

12117424

Citation

Newman, Ronald E., et al. "Dietary N-3 and N-6 Fatty Acids Alter Avian Metabolism: Molecular-species Composition of Breast-muscle Phospholipids." The British Journal of Nutrition, vol. 88, no. 1, 2002, pp. 19-28.
Newman RE, Bryden WL, Fleck E, et al. Dietary n-3 and n-6 fatty acids alter avian metabolism: molecular-species composition of breast-muscle phospholipids. Br J Nutr. 2002;88(1):19-28.
Newman, R. E., Bryden, W. L., Fleck, E., Ashes, J. R., Storlien, L. H., & Downing, J. A. (2002). Dietary n-3 and n-6 fatty acids alter avian metabolism: molecular-species composition of breast-muscle phospholipids. The British Journal of Nutrition, 88(1), 19-28.
Newman RE, et al. Dietary N-3 and N-6 Fatty Acids Alter Avian Metabolism: Molecular-species Composition of Breast-muscle Phospholipids. Br J Nutr. 2002;88(1):19-28. PubMed PMID: 12117424.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dietary n-3 and n-6 fatty acids alter avian metabolism: molecular-species composition of breast-muscle phospholipids. AU - Newman,Ronald E, AU - Bryden,Wayne L, AU - Fleck,Eva, AU - Ashes,John R, AU - Storlien,Leonard H, AU - Downing,Jeffery A, PY - 2002/7/16/pubmed PY - 2002/8/2/medline PY - 2002/7/16/entrez SP - 19 EP - 28 JF - The British journal of nutrition JO - Br J Nutr VL - 88 IS - 1 N2 - The effects of diets high in n-3 polyunsaturated fatty acids (PUFA; provided by fish oil), n-6 PUFA (sunflower oil) or in more-saturated fatty acids (tallow) on the distribution of subclasses of choline phospholipids (PC) and ethanolamine phospholipids (PE) from the breast muscle of broiler chickens were examined. Supplementation with the different fatty acids had no effect on the distribution of phospholipid subclasses. Feeding sunflower oil or tallow gave a molecular-species profile similar in both fatty acid subtype and proportion. In the diacyl PC phospholipids, 16 : 0-18 : 1n-9 and 16 : 0-18 : 2n-6 accounted for approximately 60 % of the total molecular species, whereas for the alkylenyl PC the predominant species were 16 : 0-18 : 1n-9 and 16 : 0-20 : 4n-6. Of the diacyl PE the dominant species was 18 : 0-20 : 4n-6 which accounted for 50 % of the molecular species, and of the alkylenyl PE the dominant species were 16 : 0-18 : 1n-9, 16 : 0-20 : 4n-6 and 18 : 0-20 : 4n-6. Supplementation with fish oil significantly increased levels of both eicosapentaenoic acid (20 : 5n-3) and docosahexaenoic acid (22 : 6n-3) in PC and PE when compared with either sunflower oil or tallow supplementation. The increase in the n-3 PUFA incorporation was associated with a corresponding decrease in the proportion of arachidonic acid (20 : 4n-6) in both PC and PE. Different dietary fats induce different patterns of fatty acid incorporation and substitution in the sn-2 position of the diacyl and alkylenyl PC and PE of avian breast muscle, and this finding is indicative of selective acyl remodelling in these two phospholipids. SN - 0007-1145 UR - https://www.unboundmedicine.com/medline/citation/12117424/Dietary_n_3_and_n_6_fatty_acids_alter_avian_metabolism:_molecular_species_composition_of_breast_muscle_phospholipids_ L2 - https://www.cambridge.org/core/product/identifier/S0007114502001290/type/journal_article DB - PRIME DP - Unbound Medicine ER -