Comparative Characteristics of the Fatty-Acid Composition of Lipids in Factory and Wild Juveniles of Atlantic Salmon Salmo salar L.

Нефедова, З. А.; Мурзина, С. А.; Пеккоева, С. Н.; Voronin, Viktor P.; Немова, Н. Н.

doi:10.1134/s1995425520020109

Cited by 9 publications

(4 citation statements)

References 15 publications

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“…Recently, the differences in the chemical composition, fatty acid profile and flesh quality between wild and farmed fish species have been reported [20][21][22][23][24]. Several factors, such as species, age, environment (temperature, salinity, etc.…”

Section: Introductionmentioning

confidence: 99%

Cultivated and Wild Juvenile Thick-Lipped Grey Mullet, Chelon labrosus: A Comparison from a Nutritional Point of View

García‐Márquez

Galafat

Alarcón

et al. 2021

Animals

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The thick-lipped grey mullet (Chelon labrosus) is a nominee fish species for aquaculture diversification in Spain because it is an omnivore and euryhaline species, but limited knowledge about the nutritional attributes of this species is available. This study aimed to characterize the chemical composition of wild and cultured fish. The muscle proximate composition, and fatty acid and amino acid profiles were assessed. The cultivated specimens showed a higher lipid content and lower protein and ash contents compared with the wild specimens. The predominant tissue fatty acids in both the wild and cultivated fish were palmitic acid (16:0), oleic acid (18:1n-9) and docosahexaenoic acid (DHA, 22:6n-3). A higher content of arachidonic acid (ARA, 20:4n-6), eicosapentaenoic acid (20:5n-3) and DHA were detected in the muscle of wild mullets, while the fish supplied with commercial pellets showed higher quantities of monounsaturated fatty acids, and lower quantities of saturated fatty acids and polyunsaturated fatty acids (PUFAs). Regarding PUFAs, n-3 fatty acids were predominant in wild mullets, while n-6 and n-9 were more abundant in farmed fish. In terms of amino acid composition, except for histidine in wild specimens, the amino acid amounts were higher than the FAO/WHO standard. In conclusion, C. labrosus may contribute to improving the dietary intake of highly polyunsaturated n-3 fatty acids, with a benefit to human health, owing to that fact that a 100-gram fillet portion of cultivated and wild C. labrosus can provide 770 mg and 1160 mg of EPA and DHA, respectively, which exceeds the 250 mg dietary daily intake recommended by the FAO/WHO.

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Section: Introductionmentioning

confidence: 99%

Cultivated and Wild Juvenile Thick-Lipped Grey Mullet, Chelon labrosus: A Comparison from a Nutritional Point of View

García‐Márquez

Galafat

Alarcón

et al. 2021

Animals

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“…The behavioral program aimed at smoltification, and downstream migration would be launched in young fish only after they had attained a certain weight and lipid status [ 15 , 50 ]. We have to point out here that in our recent study [ 38 ], the comparison of weight and length characteristics, as well as the content of DHA and EPA, and their metabolic precursors as 18:3(n-3) and 18:2(n-6) for hatchery-reared and wild underyearlings, showed that weight characteristics were higher for the former ones, while the ratio of essential 18:3(n-3)/18:2(n-6) was higher in wild fish due to differences in diets. Due to differences in diets, the technology of the hatchery aims to grow fish ready to smoltify in a shorter time, and the differences in DHA for underyearlings and yearlings between hatchery-reared and wild revealed that DHA was higher in hatchery-reared underyearlings and the content of FA was equal for both.…”

Section: Discussionmentioning

confidence: 97%

“…Previously, we accumulated baseline data on the lipid status of parr and smolts of Atlantic salmon from wild populations inhabiting freshwater in the Kola Peninsula [ 36 , 37 , 38 , 39 ]. Fatty acids are involved in an organism’s adaptive reactions in response to changes in the environment, participate in energy and physiological processes in the cell, and help regulate biochemical reactions.…”

Section: Discussionmentioning

confidence: 99%

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The Effect of the Photoperiod on the Fatty Acid Profile and Weight in Hatchery-Reared Underyearlings and Yearlings of Atlantic Salmon Salmo salar L.

et al. 2020

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The influence of two light regimes, 16:8 h light/dark (LD 16:8) and 24:0 h light/dark (LD 24:0), in comparison to a usual hatchery light regime (HL), on the fatty acids content and weight gain in hatchery-reared underyearlings (at 0+ age) and yearlings (at 1+ age) of Atlantic salmon in the summer–autumn period was studied. The total lipids were analyzed by Folch method, the lipid classes using HPTLC, and the fatty acids of total lipids using GC. The increase in EPA and DHA observed in October in underyearlings and yearlings salmon (especially under LD 24:0) suggests they were physiologically preparing for overwintering. The changes in fatty acids and their ratios in juvenile Atlantic salmon can be used as biochemical indicators of the degree to which hatchery-reared fish are ready to smoltify. These associated with an increase in marine-type specific DHA and EPA, an increase in the 16:0/18:1(n-9) ratio, in correlation with a reduction in MUFAs (mainly 18:1(n-9)). These biochemical modifications, accompanied by fish weight gain, were more pronounced in October in yearlings exposed to continuous light (LD 24:0). The mortality rate was lower in experimental groups of underyearliings with additional lighting. Exposure to prolonged and continuous light did not affect yearlings mortality rate.

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Fatty Acid Composition of Total Lipids in Atlantic Salmon Salmo salar L. Parr and Smolts Reared in Aquaculture at Various Lighting Regimes

Provotorov,

Murzina,

Voronin

et al. 2023

Dokl Biol Sci

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Continuous artificial lighting (24LD) was introduced experimentally in the standard technology to grow salmon juveniles in a southern region (Republic of North Ossetia–Alania) and its effect on fatty acid (FA) composition of total lipids in muscles and the liver was assessed in parr and smolts of the Atlantic salmon Salmo salar L. Changes in the key FA were observed in the FA spectrum of fish, indicating that smoltification was complete and that smolts were ready for new habitat conditions. Thus the content of polyunsaturated FAs (PUFAs) significantly increased as a result of an increase in (n-3) PUFAs, and, in particular, marine-type 22:6(n-3), and high values were observed for (n-3)/(n-6) and 22:6(n-3)/18:3(n-3) PUFA ratios. The most significant changes were detected in muscles. In all experimental groups, a decrease in saturated FAs (SFAs) and an increase in total lipid unsaturation was attributed primarily to PUFAs, while monounsaturated FAs (MUFAs) decreased along with SFAs. The experimental data on the lipid and FA composition in salmon juveniles and a higher proportion of smolts in the test groups indicated that smoltification was the most successful in groups with continuous lighting and 24-h feeding and a natural regime of lighting and feeding.

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Comparative Characteristics of the Fatty-Acid Composition of Lipids in Factory and Wild Juveniles of Atlantic Salmon Salmo salar L.

Cited by 9 publications

References 15 publications

Cultivated and Wild Juvenile Thick-Lipped Grey Mullet, Chelon labrosus: A Comparison from a Nutritional Point of View

Cultivated and Wild Juvenile Thick-Lipped Grey Mullet, Chelon labrosus: A Comparison from a Nutritional Point of View

The Effect of the Photoperiod on the Fatty Acid Profile and Weight in Hatchery-Reared Underyearlings and Yearlings of Atlantic Salmon Salmo salar L.

Fatty Acid Composition of Total Lipids in Atlantic Salmon Salmo salar L. Parr and Smolts Reared in Aquaculture at Various Lighting Regimes

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