Effects of dietary eicosapentaenoic acid on growth, survival, pigmentation and fatty acid composition in Senegal sole (Solea senegalensis) larvae during the Artemia feeding period

Abstract

We examined the effect of dietary eicosapentaenoic acid (20:5n-3, EPA) on growth, survival, pigmentation and fatty acid composition of Senegal sole larvae using a dose-response design. From 3 to 40 days post hatch (dph), larvae were fed live food that had been enriched using one of four experimental emulsions containing graduated concentrations of EPA and constant docosahexaenoic acid (22:6n-3, DHA) and arachidonic acid (20:4n-6, ARA). Proportions of EPA in the enriched Artemia nauplii were described as "nil" (EPA-N, 0.5% total fatty acids, TFA), "low" (EPA-L, 10.7% TFA), "medium" (EPA-M, 20.3% TFA) or "high" (EPA-H, 29.5% TFA). Significant

Eicosapentaenoic Acid, Arachidonic Acid and Eicosanoid Metabolism in Juvenile Barramundi Lates calcarifer

“…However, many studies have investigated interactions between DHA, EPA and ARA or n-3 to n-6 ratios in fish and the general consensus is that size and species differences exist and that an appropriate balance between these essential fatty acids is critical Tocher, 2015). Consistent with the present study, several studies in larval and juvenile fish such as the Atlantic salmon Salmo salar (Thomassen et al, 2012), cobia Rachycentron canadum (Trushenski et al, 2012), gilthead sea bream Sparus aurata (Atalah et al, 2011a), Senegalese sole Solea senegalensis (Villalta et al, 2008), striped jack Pseudocaranx dentex (Watanabe et al, 1989) and turbot Scophthalmus maximus (Bell et al, 1995) all concluded that EPA does not stimulate an improved growth response. However, larval and juvenile red seabream Pagrus major were found to have an EPA requirement with linear improvements in growth and survival observed (Furuita et al, 1996;Takeuchi et al, 1990).…”

New developments and biological insights into the farming of Solea senegalensis reinforcing its aquaculture potential

“…From the studies that have been performed so far, there is the indication that Senegalese sole larvae perform well, with good growth and survival up to 40 dph, with dietary EPA levels as low as 0.5% TFA (when DHA was provided at 4.3% TFA), while growth was decreased at higher (10.7 and 20.3% TFA) levels of EPA (Villalta et al . ). Regarding DHA, Villalta et al .…”

“…; Villalta et al . ; Engrola et al ., ; Engrola et al ., ). A fair amount of studies have been conducted on the digestive physiology of this species, which have set the basis for a comprehensive morphological and functional characterization of its gastrointestinal ontogeny (see Conceição et al .…”

The effect of docosahexaenoic and eicosapentaenoic acids in live food on the development of abnormal morphology in hatchery-reared brown sole Pseudopleuronectes herzensteini

“…It has recently been suggested that the effect of both DHA and eicosapentaenoic acid (EPA) on pigmentation differs between flatfish species [7][8][9][10]. Although the incidence of morphological abnormalities in brown sole is reduced by feeding larvae with Artemia enriched with commercial enrichment materials [11], it is not clear whether this preventative effect of the commercial enrichment materials is caused by DHA only or also by other nutritional factors.…”