Effects of dietary grape seed oil and linseed oil on growth, muscle fatty acid composition and expression of putative Δ5 fatty acyl desaturase in abalone Haliotis discus hannai Ino

Li, Mingzhu; Mai, Kangsen; Ai, Qinghui; He, Gang; Xu, Wei; Zhang, Wenbing; Zhou, Huihui

doi:10.1016/j.aquaculture.2013.05.013

Cited by 11 publications

(6 citation statements)

References 55 publications

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“…Theoretically, increasing dietary LNA, without competition from other C18 fatty acids, should contribute to increased EPA, DPA and DHA levels in tissues. This relationship has also been suggested in abalone Haliotis discus hannai Ino (Li et al., ) and fish (Tocher, ). The study on abalone has reported that biosynthesis of HUFA in muscle of abalone could be increased in response to increasing levels of dietary LNA (Li et al., ).…”

Section: Discussionsupporting

confidence: 62%

“…This relationship has also been suggested in abalone Haliotis discus hannai Ino (Li et al., ) and fish (Tocher, ). The study on abalone has reported that biosynthesis of HUFA in muscle of abalone could be increased in response to increasing levels of dietary LNA (Li et al., ). Similarly, the accumulation of eicosatetraenoic acid (20:4n‐3) in the liver lipid fraction of Atlantic salmon ( Salmo salar) increased with increasing inputs of linseed oil in diets (Menoyo, López‐Bote, Obach, & Bautista, ).…”

Section: Discussionsupporting

confidence: 62%

“…Δ6 FAD and elovl expression can regulate the conversion of C18 precursors to LC‐PUFA in common carp ( Cyprinus carpio var. Jian ) (Ren, Yu, Xu, & Tang, ), abalone ( Haliotis discus hannai Ino) (Li et al., ) and grouper ( Epinephelus malabaricus ) (Wu & Chen, ) fed LNA‐rich diets. This is in contrast to a study on rats that reported that n‐3 LC‐PUFA synthesis from LNA is regulated independent of changes in synthetic enzyme expression, including Δ5 FAD , Δ6 FAD and elovl (Tu, Cook‐Johnson, James, Mühlhäusler, & Gibson, ).…”

Section: Introductionmentioning

confidence: 99%

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An evaluation of increasing linolenic acid level in the diet ofMacrobrachium nipponense: Lipid deposition, fatty acid composition and expression of lipid metabolism-related genes

et al. 2017

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To determine the effects of linolenic acid (LNA, in oriental river prawn (Macrobrachium nipponense), an 8-week feeding experiment was conducted using six isonitrogenous and isoenergetic semi-purified diets containing 0.07 g/kg (control), 7.3 g/kg, 16.6 g/kg, 20.2 g/kg, 27.3 g/kg and 36.3 g/kg LNA. The hepatopancreas lipid content decreased significantly when dietary LNA content was >20.2 g/kg. Fatty acid analysis revealed that the percentage of 18:3n-3 in the hepatopancreas significantly increased with increasing dietary LNA levels, while 20:5n-3, 22:5n-3 and 22:6n-3 levels in the hepatopancreas decreased in a curvilinear manner as dietary LNA increased. Additionally, qRT-PCR results revealed that hepatopancreas mRNA expression of acetyl-CoA carboxylase (ACC) decreased with increasing dietary LNA, while the greatest carnitine palmitoyl transferase-1(CPT1) mRNA expression was observed in the 2.73 g/kg and 36.3 g/kg groups. Furthermore, hepatopancreas mRNA expression of acyl-CoA delta-9 desaturase (SCD) and fatty acyl elongase 6(elovl6) was downregulated when prawns fed the diets containing >20.2 g/kg LNA. These results indicate that dietary 18:3n-3 could decrease lipid deposition through increased fatty acid β-oxidation and modulated fatty acid synthesis, and alter fatty acid composition by regulating fatty acyl elongase and fatty acyl desaturase mRNA expression in the M. nipponense. K E Y W O R D S fatty acid composition, linolenic acid, lipid deposition, Macrobrachium nipponense, mRNA expression

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Section: Discussionsupporting

confidence: 62%

Section: Discussionsupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

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An evaluation of increasing linolenic acid level in the diet ofMacrobrachium nipponense: Lipid deposition, fatty acid composition and expression of lipid metabolism-related genes

et al. 2017

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“…Fatty acyl desaturases having ∆5-like specificity appear to be widely distributed among molluscs. Thus, two putative ∆5 desaturases were recently cloned from the abalone Haliotis discus hannai [ 54 ]. Functional assays in yeast confirmed the abalone desaturases had ∆5 activity and showed that they had only 53% identity to mammalian Fads [ 55 ].…”

Section: Molluscs Can Biosynthesize Pufamentioning

confidence: 99%

Biosynthesis of Polyunsaturated Fatty Acids in Marine Invertebrates: Recent Advances in Molecular Mechanisms

2013

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Virtually all polyunsaturated fatty acids (PUFA) originate from primary producers but can be modified by bioconversions as they pass up the food chain in a process termed trophic upgrading. Therefore, although the main primary producers of PUFA in the marine environment are microalgae, higher trophic levels have metabolic pathways that can produce novel and unique PUFA. However, little is known about the pathways of PUFA biosynthesis and metabolism in the levels between primary producers and fish that are largely filled by invertebrates. It has become increasingly apparent that, in addition to trophic upgrading, de novo synthesis of PUFA is possible in some lower animals. The unequivocal identification of PUFA biosynthetic pathways in many invertebrates is complicated by the presence of other organisms within them. These organisms include bacteria and algae with PUFA biosynthesis pathways, and range from intestinal flora to symbiotic relationships that can involve PUFA translocation to host organisms. This emphasizes the importance of studying biosynthetic pathways at a molecular level, and the continual expansion of genomic resources and advances in molecular analysis is facilitating this. The present paper highlights recent research into the molecular and biochemical mechanisms of PUFA biosynthesis in marine invertebrates, particularly focusing on cephalopod molluscs.

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“…Due to the limited ability of A. japonicus to convert 18:3 n ‐3 to 20:5 n ‐3 and 22:6 n ‐3, it was possible that these two LC‐PUFAs in the VO‐based groups were not enough to maintain optimal growth performance. On the other hand, high intakes of dietary 18:2 n ‐6 and/or 18:3 n ‐3 by A. japonicus in the VO‐based groups might also be responsible for their growth performance (Li et al., ).…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary macroalgae meal and lipid source on growth performance and body wall fatty acid composition of sea cucumber Apostichopus japonicus

Wen

Sun²,

Gao

et al. 2017

Aquac Res

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A 70-day experiment was conducted to examine the effects of different macroalgal meals and lipid sources on growth, body wall composition and fatty acid (FA) profile of sea cucumber Apostichopus japonicus. Two macroalgal meals including Sargassum muticum (SM) and Gracilaria lemaneiformis (GL) and two lipid sources including fish oil (FO) and vegetable oil (VO) were formulated into four diets, i.e., S. muticum and fish oil (SF), S. muticum and vegetable oil (SV), G. lemaneiformis and fish oil (GF) and G. lemaneiformis and vegetable oil (GV). The results showed that the specific growth rates (SGR) of A. japonicus fed diets containing SM were significantly higher than those fed diets containing GL. No significant differences in SGR between the FObased and VO-based groups were observed. Similar results were observed in the body wall lipid content. Most body wall FAs changed to resemble the dietary FA proportions because of the dietary effect. Concentrations of 20:4n-6 of the SF and GF groups were significantly lower than the SV and GV groups, while levels of 20:5n-3 and 22:6n-3 were significantly higher than the SV and GV groups. The n-3/ n-6 polyunsaturated fatty acids (PUFA) ratios of the SF and GF groups were significantly higher than the SV and GV groups. Moreover, the SF group had significantly higher 20:5n-3 and 22:6n-3 contents and n-3/n-6 PUFAs ratio than the GF group.These findings reveal that the SF diet can show beneficial effects on both growth performance and body wall n-3 PUFAs content of A. japonicus.

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Effects of dietary grape seed oil and linseed oil on growth, muscle fatty acid composition and expression of putative Δ5 fatty acyl desaturase in abalone Haliotis discus hannai Ino

Cited by 11 publications

References 55 publications

An evaluation of increasing linolenic acid level in the diet ofMacrobrachium nipponense: Lipid deposition, fatty acid composition and expression of lipid metabolism-related genes

An evaluation of increasing linolenic acid level in the diet ofMacrobrachium nipponense: Lipid deposition, fatty acid composition and expression of lipid metabolism-related genes

Biosynthesis of Polyunsaturated Fatty Acids in Marine Invertebrates: Recent Advances in Molecular Mechanisms

Effects of dietary macroalgae meal and lipid source on growth performance and body wall fatty acid composition of sea cucumber Apostichopus japonicus

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