Fatty acids of different nature differentially modulate feed intake in rainbow trout

Calo, Jessica; Conde-Sieira, Marta; Comesaña, Sara; Soengas, José L.; Blanco, Ayelén Melisa

doi:10.1016/j.aquaculture.2022.738961

Cited by 6 publications

(7 citation statements)

References 28 publications

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“…Considering that these genes have an obvious response to lipid concentration, fatty acid concentration may also be an important factor affecting gene expression. In addition, previous research regarding ALA reported a time-dependent effect of this fatty acid on feed intake [33]. Thus, the effect of fatty acid concentration and the length of incubation time on the appetite regulation of fish remains to be elucidated further.…”

Section: Discussionmentioning

confidence: 93%

“…Therefore, it is meaningful to investigate the mechanism of the influence of HFD on food intake. Besides dietary lipid concentration, dietary fatty acid (FA) composition changes also influence fish appetite [33]. Oleate acid (OA), linoleic acid (LA), palmitic acid (PA), and α-linolenic acid (ALA) are common FAs of daily VO in the fish diet.…”

Section: Introductionmentioning

confidence: 99%

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Molecular Characterization and Expression Response of Ghrelin, GLP-1 and PYY to Fasting, Dietary Lipid, and Fatty Acids in Silver Pomfret (Pampus argenteus)

Zhang

Shi

Zhang

et al. 2023

Fishes

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Ghrelin, glucagon-like peptide-1 (GLP-1), and peptide YY (PYY) are potent hormones mediating food intake according to the nutritional status in fish. However, limited information is available on these genes and their expression in response to nutrition in silver pomfret (Pampus argenteus). A comparison analysis revealed that ghrelin and GLP-1 were relatively conserved in marine fish. PYYa and PYYb shared a low identity and were clustered to different PYY branches. Ghrelin, pyya, and pyyb mRNAs were highly expressed in the brain, while glp-1 was highly expressed in the gills and liver. The ghrelin mRNA expression was relatively high an hour post-feeding and decreased after 3 to 72 h of fasting. The glp-1 mRNA expression was increased after 6 to 24 h of fasting. The pyya mRNA expression was increased after 72 h of fasting, while the pyyb expression remained stable during fasting. The diet with 14% lipid promoted the expressions of glp-1, pyya, and pyyb, but inhibited the ghrelin expression. The ghrelin expression in the intestine was increased after palmitic acid, oleic acid (OA), linoleic acid (LA), α-linolenic acid, eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) incubation. OA decreased the expression of glp-1 and increased the expression of pyya. The expression of pyyb was downregulated by LA, DHA, and EPA. These results suggest the importance of ghrelin, glp-1, and pyy in coordinating food intake in response to fasting, dietary lipid concentration, and fatty acids in silver pomfret.

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Section: Discussionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Molecular Characterization and Expression Response of Ghrelin, GLP-1 and PYY to Fasting, Dietary Lipid, and Fatty Acids in Silver Pomfret (Pampus argenteus)

Zhang

Shi

Zhang

et al. 2023

Fishes

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“…Lipids in the muscles are highly dependent on the diet of fish, and changes in lipid composition are slow, even with dietary changes such as those experienced by farm-escaped fish. The diet of wild fish differs from that of farmed fish, so these fish groups should exhibit different lipid profiles …”

Section: Discussionmentioning

confidence: 99%

“…The diet of wild fish differs from that of farmed fish, so these fish groups should exhibit different lipid profiles. 58 In conclusion, metabolomics and lipidomics provide valuable biomarkers for tracing the origin of gilthead sea bream, differentiating wild specimens from those raised in aquaculture facilities. Taurine and linoleic acid, as well as ω-3 fatty acids, are potential biomarkers for this purpose.…”

Section: Discussionmentioning

confidence: 99%

“…The ω-3 fatty acid content in wild fish was higher than that in farm-raised fish (until slaughter) and farm-escaped fish (caught by professional fishermen), as shown in the PLS-LDA model (Figure ), making it a useful biomarker for identifying wild fish. Fatty acids play a crucial role in energy metabolism in fish. ,,− They are stored as triacylglycerides in adipose tissue and are used as a continuous source of energy . As fish cannot synthesize some fatty acids, fatty acid composition is primarily determined by diet .…”

Section: Discussionmentioning

confidence: 99%

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Metabolomic and Lipidomic Tools for Tracing Fish Escapes from Aquaculture Facilities

Badaoui,

Marhuenda-Egea,

Valero-Rodriguez

et al. 2024

ACS Food Sci. Technol.

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During adverse atmospheric events, enormous damage can occur at marine aquaculture facilities, as was the case during Storm Gloria in the southeastern Spanish Mediterranean in January 2020, with massive fish escapes. Fishes that escape were caught by professional fishermen. The objective of this study was to identify biomarkers in fish that enable differentiation among wild fish, escaped farm-raised fish, and farm-raised fish kept in aquaculture facilities until their slaughter. We focused on gilthead sea bream (Sparus aurata). We used nuclear magnetic resonance to search for possible biomarkers. We found that wild gilthead sea bream showed higher levels of taurine and trimethylamine-N-oxide (TMAO) in their muscle and higher levels of ω-3 fatty acids, whereas farm-escaped and farmed gilthead sea bream raised until slaughter exhibit higher levels of ω-6 fatty acids. From choline, carnitine, creatinine, betaine, or lecithin, trimethylamine (TMA) is synthesized in the intestine by the action of bacterial microflora. In the liver, TMA is oxidized to TMAO and transported to muscle cells. The identified biomarkers will improve the traceability of gilthead sea bream by distinguishing wild specimens from those raised in aquaculture.

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Fatty acids of different nature differentially modulate feed intake in rainbow trout

Cited by 6 publications

References 28 publications

Molecular Characterization and Expression Response of Ghrelin, GLP-1 and PYY to Fasting, Dietary Lipid, and Fatty Acids in Silver Pomfret (Pampus argenteus)

Molecular Characterization and Expression Response of Ghrelin, GLP-1 and PYY to Fasting, Dietary Lipid, and Fatty Acids in Silver Pomfret (Pampus argenteus)

Metabolomic and Lipidomic Tools for Tracing Fish Escapes from Aquaculture Facilities

Dietary lipid levels affect growth performance, lipid metabolism, antioxidant and immune status of Amur sturgeon, Acipenser schrenckii

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