Fatty acid profile of fillet, liver and mesenteric fat in tilapia (&amp;lt;i&amp;gt;Oreochromis niloticus&amp;lt;/i&amp;gt;) fed vegetable oil supplementation in the finishing period of fattening

Molnár, Tamás; Biró, Janka; Hancz, Csaba; Romvári, Róbert; Varga, Dániel; Horn, Peter A.; Szabó, András

doi:10.5194/aab-55-194-2012

Cited by 6 publications

(6 citation statements)

References 28 publications

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“…The present research confirmed that the fatty acid composition of several tilapia tissues is directly influenced by the dietary lipid source as described previously (Szabó et al, 2011; Molnár et al 2012), although this is a general statement since there are some specificities in both tissues and fatty acids independent of diet. The most abundant fatty acids in diets TFO, Low‐CO and Med‐CO were 16:0, 18:1n‐9 and LOA, and this was clearly reflected in all tissues of fish fed those diets.…”

Section: Discussionsupporting

confidence: 92%

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Lipid variations in tilapia (var. GIFT Oreochromis sp.) tissues due to dietary replacement of fish oil with camelina oil ( Camelina sativa )

Toyes-Vargas

Magallón‐Barajas²,

Parrish

2022

Aquaculture Research

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Dietary fish oil can potentially be replaced by camelina oil in aquafeeds since 18:3n‐3 (α‐linolenic acid: ALA) accounts for 35% of the fatty acids. To test the effect of camelina oil on fish lipid composition, a feeding trial with tilapia (var. GIFT Oreochromis sp.) was carried out. Four experimental diets were formulated, one containing only fish oil (TFO), two where fish oil was replaced by camelina at low (Low‐CO) and medium (Med‐CO) levels, and another made only with camelina oil (TCO). A commercial diet (COM) was used as a reference diet. At the end of an 8‐week feeding trial, the liver, kidney, heart and brain were sampled. In terms of proportions across tissues, the liver showed the highest triacylglycerol and oleic acid content; the kidney was higher in arachidonic (ARA) and eicosapentaenoic acid (EPA); the heart had the highest total lipids, linoleic acid (LOA) and ALA, while the brain was higher in sterols, acetone‐mobile polar lipids (AMPL), phospholipids and docosahexaenoic acid (DHA). In terms of concentration among diets within tissues, when comparing TFO vs TCO, the phospholipids and ARA increased in the kidney, while the phospholipids decreased in the heart and the DHA in the brain. The TCO diet significantly increased 20:1n‐9 and ALA in all analysed tissues. As expected, the COM diet significantly increased concentrations of EPA, docosapentaenoic acid (n‐3DPA) and DHA in all analysed tissues.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 91%

Lipid variations in tilapia (var. GIFT Oreochromis sp.) tissues due to dietary replacement of fish oil with camelina oil ( Camelina sativa )

Toyes-Vargas

Magallón‐Barajas²,

Parrish

2022

Aquaculture Research

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“…Similar studies performed on tropical (Clement & Lovell, 1994) and temperate (Ahlgren et al, 1994) freshwater fishes showed the dominance of these fatty acids in the tissue of fish. Overall, the results of fatty acid concentration were consistent with the results reported for tilapia in tank culture system (Karapanagiotidis et al, 2006;Molnar et al, 2012;Ma et al, 2015) and in pond culture systems (Ponzoni et al, 2008;Nguyen et al, 2010). Some of the GIFT tilapia reared in pond were observed to have spawned during the experimental period (GIFT tilapia fingerlings were noticed nearby the cage during feeding time).…”

Section: Discussionsupporting

confidence: 88%

Growth Performance and Post-Harvest Quality of Gift Tilapia Reared in Two Different Culture Systems

Zin

Basri

Al-Azad

et al. 2020

MABJ

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The growth performance, feed utilization, sensory evaluation, proximate and fatty acid composition of Genetically Improved Farmed Tilapia (GIFT) reared in different aquaculture systems (tank and cage culture in pond) were examined in a 126-day feeding trial. Throughout the feeding trial, fish were fed commercial tilapia feed twice a day at 3% of their body weight. Significantly higher final body weight, weight gain, daily growth rate, viscerosomatic and hepatosomatic indices were yielded in GIFT tilapia cultured in pond than in tank. In contrast, GIFT tilapia cultured in tank showed significantly higher survival rate than GIFT tilapia cultured in pond. Higher positive scores of sensory evaluation test were observed in both treatments, indicating the good acceptance of consumers towards GIFT tilapia. Meanwhile, higher contents of 20:5n-3 and 22:6n-3 of GIFT tilapia fillets from tank culture system than those cultured in cage were mainly influenced by significantly different size of fish and maturity factor during harvest. In general, it can be concluded that the performance of GIFT tilapia reared in pond culture system was better than those in tank culture system with benefits of early harvest and faster growth rate. On the other hand, tank culture system also has its own advantages in terms of higher survival rate and better fatty acid profile.

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“…Croft et al, (1988) reported antagonistic effect of EPA on ARA in rats' leukocytes. The ratio of ARA to -3 PUFAs (EPA and DHA) in human diets is also an important factor (Molnar, 2012). Although the issue whether dietary ARA is harmful or not is unequivocal since ARA has both pro and antithrombotic and inflammatory effects (Netleton, 2008).…”

Section: Figmentioning

confidence: 99%

Effect of long term supplementation with dietary lipids on growth and fatty acid composition of rabbit’s brain

Arzoo

Nouri

2017

IJAR

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The purpose of this study was to investigate the effect of long-term supplementation with dietary lipids on growth and fatty acid composition of rabbit’s brain. Soybean oil, fish oil, sesame oil, docosahexaenoic acid and arachidonic acid were fed to weanling rabbits for 100 days. The rabbits were decapitated and brain sample was removed, homogenized and fatty acid concentration was measured by gas chromatography. Dietary lipids had a distinct effect on growth rate only in males. Rabbits fed the fish oil diet showed the highest total w-3 fatty acids and lowest w-6/w-3 ratios. Rabbits fed the DHA diet had highest total saturated fatty acids and lowest values of total MUFA, total PUFA, total w-6, and total w-3 in females. This study shows that w-6/w-3 ratios have tremendous effect on the fatty acid composition of rabbit’s brain. Effect of treatment was not significant among different gender except for total saturated, ARA, C20:1 and C16:0. FO, DHA and DHA+ARA groups showed the w-6/w-3 ratios within the recommended range. This study shows that fatty acid composition of brain can be modulated by dietary lipids and long-term supplementation of dietary lipids especially fish oil (FO) has very good effect on the fatty acid composition of rabbit’s brain.

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Fatty acid profile of fillet, liver and mesenteric fat in tilapia (<i>Oreochromis niloticus</i>) fed vegetable oil supplementation in the finishing period of fattening

Cited by 6 publications

References 28 publications

Lipid variations in tilapia (var. GIFT Oreochromis sp.) tissues due to dietary replacement of fish oil with camelina oil ( Camelina sativa )

Lipid variations in tilapia (var. GIFT Oreochromis sp.) tissues due to dietary replacement of fish oil with camelina oil ( Camelina sativa )

Growth Performance and Post-Harvest Quality of Gift Tilapia Reared in Two Different Culture Systems

Effect of long term supplementation with dietary lipids on growth and fatty acid composition of rabbit’s brain

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