Time course deposition of conjugated linoleic acid in market size rainbow trout (Oncorhynchus mykiss) muscle

Ramos, M.A.; Bandarra, Narcisa M.; Rema, Paulo; Vaz‐Pires, Paulo; Nunes, María Leonor; Andrade, Alexandre; Cordeiro, Ana Rita Ribeiro de Araújo; Valente, Luísa

doi:10.1016/j.aquaculture.2007.11.040

Cited by 19 publications

(31 citation statements)

References 60 publications

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“…In the present study, a preferential incorporation of cis-9, trans-11 CLA isomer into the whole body was observed, as also observed by Bandarra et al (2006) and dos Santos et al (2010). The CLA level detected in the control fish could be due to vegetable protein and/or vegetable oil incorporated in the commercial diets fed to those fish before starting the experiment, as suggested by Ramos et al (2008).…”

Section: Tablesupporting

confidence: 85%

“…Similarly, Bandarra et al (2006) reported that lipid content in viscera showed a decrease with CLA inclusion in fish fed the 0.5% diet compared to those fed the control. In contrast, dietary CLA did not affect CF (Kennedy et al, 2007;Valente et al, 2007a;Ramos et al, 2008) and VSI in several studies (Figueiredo-Silva et al, 2005;Kennedy et al, 2005). The different effects of CLA obtained in our study and other reports may be attributable to differences in metabolic rate, administered dose of dietary CLA, relative proportion of each isomer in a dietary CLA mixture, or length of the feeding period, as suggested by Terpstra (2001).…”

Section: Discussioncontrasting

confidence: 49%

“…In the present study, inclusion of dietary CLA at 2% significantly reduced feed intake as observed by Twibell et al (2000), Diez et al (2007) and Makol et al (2009), and reduced feed efficiency as in fish fed the 2% CLA diet observed by Choi et al (1999). In contrast, growth performance and feed utilization were not affected by dietary CLA inclusion in several fish species (Twibell and Wilson, 2003;Berge et al, 2004;Kennedy et al, 2005;Bandarra et al, 2006;Ramos et al, 2008;Makol et al, 2009). In addition, Twibell et al (2000) reported that fish fed diets with CLA inclusion exhibited significantly improved feed efficiency compared to control animals.…”

Section: Discussionsupporting

confidence: 43%

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Effect of dietary conjugated linoleic acid (CLA) on growth performance, body composition and hepatic intermediary metabolism in juvenile yellow catfish Pelteobagrus fulvidraco

et al. 2010

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Section: Tablesupporting

confidence: 85%

Section: Discussioncontrasting

confidence: 49%

Section: Discussionsupporting

confidence: 43%

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Effect of dietary conjugated linoleic acid (CLA) on growth performance, body composition and hepatic intermediary metabolism in juvenile yellow catfish Pelteobagrus fulvidraco

et al. 2010

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“…In 54 papers the quantification method is described in details (i.e., use of internal standard and serially diluted mixtures of external standards, use of empirical or theoretical response factors for each FA, system calibration) (Bell and Dick 2004; Ludwig et al 2008; Lund et al 2008). Concerning the “unclear” group, in 80 papers, the use of an internal standard is mentioned but no further explanation of this use is provided (e.g., Garduño‐Lugo et al 2007; Ramos et al 2008; Díaz‐López et al 2009). Finally, in many of the papers (169 out of 394, 42.89%) the description of quantification is completely unclear as the only information usually provided is that FA were quantified “…by use of the xx software” or “…by integration of the peak areas” (Blanchard et al 2008; Benedito‐Palos et al 2009; Figueiredo‐Silva et al 2010).…”

Section: Resultsmentioning

confidence: 99%

“…Consequently, FA percentages cannot be used to conclude on fish nutritional value for human consumption. As it is very clearly stated by Hardy (2003), “…consumers do not eat percentages, they eat grams per serving.” But still, 138 out of 189 of the selected papers concluding on fish quality (Table 7), report FA solely as percentages among totFA (Ramos et al 2008; Sharma et al 2010). It should though be emphasized that when total lipid and FA content of the tissue analyzed is not subject to changes due to the experimental treatment, then the use of FA as % totFA is indeed illustrative of treatments effects.…”

Section: Discussionmentioning

confidence: 99%

An Overview of the Use of Fatty Acids in Fish Farming Research during the Last Decade, with Particular Emphasis on Fish Quality

Karakatsouli

2012

J World Aquaculture Soc

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The present literature overview was carried out in order to assess the use of fatty acids (FA) analysis in fish farming research during the last decade. As aquaculture products are mainly intended for human consumption, the overview is focused on fish fillet, carcass or whole body FA, as a major aspect of fish nutritional value. This survey used 394 papers and demonstrated that a) 71% of papers report FA as relative percentage of total FA (% totFA), b) 23% of papers report actual FA amounts, c) in 63% of papers not enough information is provided in “Materials and Methods” section to understand exactly how FA analysis was performed, and d) based on FA percentages, results are not always the same as when based on FA amounts, and thus divergent conclusions about treatment effects could be drawn. These findings indicate that certain issues need to be addressed regarding adequate description of analytical methods followed for FA analysis, presentation and interpretation of FA results and may help to highlight critical points that should be considered from the researchers' and scientific journals' sides in order to foster more informative research publications.

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Conjugated linoleic acid alters growth performance, tissue lipid deposition, and fatty acid composition of darkbarbel catfish (Pelteobagrus vachelli)

Dong

Liu

et al. 2014

Fish Physiol Biochem

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Fatty liver syndrome is a prevalent problem of farmed fish. Conjugated linoleic acid (CLA) has received increased attention recently as a fat-reducing fatty acid to control fat deposition in mammals. Therefore, the aim of the present study was to determine whether dietary CLA can reduce tissue lipid content of darkbarbel catfish (Pelteobagrus vachelli) and whether decreased lipid content is partially due to alterations in lipid metabolism enzyme activities and fatty acid profiles. A 76-day feeding trial was conducted to investigate the effect of dietary CLA on the growth, tissue lipid deposition, and fatty acid composition of darkbarbel catfish. Five diets containing 0 % (control), 0.5 % (CLA0.5), 1 % (CLA1), 2 % (CLA2), and 3 % (CLA3) CLA levels were evaluated. Results showed that fish fed with 2-3 % CLA diets showed a significantly lower specific growth rate and feed conversion efficiency than those fed with the control diet. Dietary CLA decreased the lipid contents in the liver and intraperitoneal fat with the CLA levels from 1 to 3 %. Fish fed with 2-3 % CLA diets showed significantly higher lipoprotein lipase and hepatic triacylglycerol lipase activities in liver than those of fish fed with the control, and fish fed with 1-3 % CLA diets had significantly higher pancreatic triacylglycerol lipase activities in liver than those of fish fed with the control. Dietary CLA was incorporated into liver, intraperitoneal fat, and muscle lipids, with higher percentages observed in liver compared with other tissues. Liver CLA deposition was at the expense of monounsaturated fatty acids (MUFA). In contrast, CLA deposition appeared to be primarily at the expense of MUFA and n-3 polyunsaturated fatty acids (PUFA) in the intraperitoneal fat, whereas in muscle it was at the expense of n-3 PUFA. Our results suggested that CLA at a 1 % dose can reduce liver lipid content without eliciting any negative effect on growth rate in darkbarbel catfish. This lipid-lowering effect could be in part due to an increment in the activity of lipid metabolism enzymes and an extensive interconversion of fatty acids. Although CLA deposition in muscle (0.66-3.19 % of total fatty acids) are higher than presented in natural sources of CLA, EPA (C20:5n-3) in fish muscle appears simultaneously expendable, when the fish fed with 2-3 % CLA.

show abstract

Time course deposition of conjugated linoleic acid in market size rainbow trout (Oncorhynchus mykiss) muscle

Cited by 19 publications

References 60 publications

Effect of dietary conjugated linoleic acid (CLA) on growth performance, body composition and hepatic intermediary metabolism in juvenile yellow catfish Pelteobagrus fulvidraco

Effect of dietary conjugated linoleic acid (CLA) on growth performance, body composition and hepatic intermediary metabolism in juvenile yellow catfish Pelteobagrus fulvidraco

An Overview of the Use of Fatty Acids in Fish Farming Research during the Last Decade, with Particular Emphasis on Fish Quality

Conjugated linoleic acid alters growth performance, tissue lipid deposition, and fatty acid composition of darkbarbel catfish (Pelteobagrus vachelli)

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