Please use this identifier to cite or link to this item:
Title: The importance of dietary HUFA for meagre larvae (Argyrosomus regius; Asso, 1801) and its relation with antioxidant vitamins E and C
Authors: El Kertaoui, N.
Hernandez-Cruz, C.M 
Montero, Daniel 
Jose Caballero, Maria 
Mohamed Ibrahim Azam, Reda Saleh 
Afonso López, Juan Manuel 
Izquierdo, Marisol 
UNESCO Clasification: 310502 Piscicultura
Keywords: Antioxidant
Argyrosomus regius
Fish larvae
n-3 HUFA
Requirements, et al
Issue Date: 2017
Journal: Aquaculture Research 
Abstract: Despite the interest of meagre (Argyrosomus regius) as a fast-growing candidate for Mediterranean aquaculture diversification, there is a lack of information on nutrition along larval development. Importance of highly unsaturated fatty acids (HUFA) and the antioxidant vitamins E and vitamin C has not been investigated yet in this species. Six diets with two levels of HUFA (0.4% and 3% dw), two of vitamin E (1500 and 3000 mg kg−1) and two of vitamin C (1800 and 3600 mg kg−1) were fed to 15 dah meagre larvae. Larval growth in total length and dry body weight was significantly lowest in larvae fed diet 0.4/150/180 and showed few lipid droplets in enterocytes and hepatocytes and lower HUFA contents than the initial larvae. Increase in dietary HUFA up to 3%, significantly improved larval growth and lipid absorption and deposition. Besides, among fish fed 3% HUFA, increase in vitamin E and vitamin C significantly improved body weight, as well as total lipid, 22:6n-3 and n-3 fatty acids contents in the larvae. Thus, the results showed that 0.4% dietary HUFA is not enough to cover the essential fatty acid requirements of larval meagre and a high HUFA requirement in weaning diets is foreseen for this species. Besides, the results also pointed out the importance of dietary vitamin E and C to protect these essential fatty acids from oxidation, increase their contents in the larvae and promote growth, suggesting high vitamin E and C requirements in meagre larvae (higher than 1500 and 1800 mg kg−1 for vitamin E and vitamin C respectively).
ISSN: 1355-557X
DOI: 10.1111/are.12890
Source: Aquaculture Research[ISSN 1355-557X],v. 48 (2), p. 419-433
Appears in Collections:Artículos
Show full item record


checked on Apr 14, 2024


checked on Feb 25, 2024

Page view(s)

checked on Dec 23, 2023

Google ScholarTM




Export metadata

Items in accedaCRIS are protected by copyright, with all rights reserved, unless otherwise indicated.