| Dietary Fish Oil Supplements Increase Tissue n-3 Fatty Acid Composition and Expression of Delta-6 Desaturase and Elongase-2 in Jade Tiger Hybrid Abalone. | |
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MedLine Citation:
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PMID: 21553072 Owner: NLM Status: Publisher |
Abstract/OtherAbstract:
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This study was conducted to investigate the effects of fish oil (FO) supplements on fatty acid composition and the expression of ∆6 desaturase and elongase 2 genes in Jade Tiger abalone. Five test diets were formulated to contain 0.5, 1.0, 1.5, 2.0 and 2.5% of FO respectively, and the control diet was the normal commercial abalone diet with no additional FO supplement. The muscle, gonad and digestive glands (DG) of abalone fed with all of the five test diets showed significantly high levels of total n-3 polyunsaturated fatty acid (PUFA), eicosapentaenoic acid (EPA), docosapentaenoic acid n-3 (DPAn-3), and docosahexaenoic acid (DHA) than the control group. In all three types of tissue, abalone fed diet supplemented with 1.5% FO showed the highest level of these fatty acids (P < 0.05). For DPAn-3 the higher level was also found in muscle and gonad of abalone fed diet supplemented with 2% FO (P < 0.05). Elongase 2 expression was markedly higher in the muscle of abalone fed diet supplemented with 1.5% FO (P < 0.05), followed by the diet containing 2% FO supplement. For ∆6 desaturase, significantly higher expression was observed in muscle of abalone fed with diet containing 0.5% FO supplement (P < 0.05). Supplementation with FO in the normal commercial diet can significantly improve long chain n-3 PUFA level in cultured abalone, with 1.5% being the most effective supplementation level. |
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Authors:
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Hintsa T Mateos; Paul A Lewandowski; Xiao Q Su |
Publication Detail:
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Type: JOURNAL ARTICLE Date: 2011-5-7 |
Journal Detail:
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Title: Lipids Volume: - ISSN: 1558-9307 ISO Abbreviation: - Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-5-9 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0060450 Medline TA: Lipids Country: - |
Other Details:
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Languages: ENG Pagination: - Citation Subset: - |
Affiliation:
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School of Biomedical and Health Sciences, Victoria University, P.O. Box 14428, MCMC, Melbourne, VIC, 8001, Australia. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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