Dietary neutral lipid level and source in Senegalese sole (Solea senegalensis) larvae: effect on growth, lipid metabolism and digestive capacity

Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
Sofia MoraisMaria Teresa Dinis

Abstract

Contrary to larval essential fatty acid (EFA) requirements, the effect of dietary neutral lipid supply has been little investigated in marine fish larvae. The present work investigates the effect of feeding Senegalese sole larvae on Artemia enriched with higher or lower doses of lipid emulsion. Two lipid sources - soybean oil and fish oil - were compared. From 16 days after hatching (DAH) onwards, larvae were fed one of four experimental treatments: Artemia enriched on a high or low dose of soybean oil emulsion (HS and LS) or Artemia enriched on a high or low dose of fish oil emulsion (HF and LF). In terms of growth, the dietary lipid level did not have a significant effect while the soybean oil treatments induced a lower growth than the fish oil-enriched Artemia. The fatty acid (FA) composition of the larvae closely reflected the dietary quantitative and qualitative FA profile. Only slight dietary effects were noted in the activity of trypsin, lipase and alkaline phosphatase. A higher amount of lipid droplets was noticeable in the posterior intestine epithelia and in the hepatocytes of larvae fed Artemia enriched with higher lipid doses, while LS-Artemia induced the lower lipid accumulation on the basal zone of the enterocytes...Continue Reading

References

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Citations

Nov 1, 2003·Archives of Biochemistry and Biophysics·Mark T McCammon, Lee McAlister-Henn
Oct 11, 2015·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·J Roman-PadillaM Manchado
Dec 3, 2014·Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics·I Hachero-CruzadoM Manchado
May 21, 2013·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Pedro BorgesLuísa M P Valente
Jan 16, 2020·Environmental Monitoring and Assessment·Rita MaurícioMário S Diniz
Sep 1, 2011·Environmental Science & Technology·Heather E GallChad T Jafvert
Nov 8, 2014·Environmental Science & Technology·Jane E MorthorstPoul Bjerregaard
Nov 23, 2012·Environmental Science & Technology·Jessica K LeetMaria S Sepúlveda

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