Article (Scientific journals)
Dynamics of total body fatty acids during early ontogeny of pikeperch (Sander lucioperca) larvae
Abi-Ayad, Sidi-Mohammed EL-Amine; Boutiba, Z.; Mélard, Charles et al.
2004In Fish Physiology and Biochemistry, 30 (2), p. 129-136
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Keywords :
feeding; fish; larval development; lipids; PUFA metabolism
Abstract :
[en] The fatty acid composition of pikeperch (Sander lucioperca) was determined according to their physiological status, during starvation (10 days) and feeding (28 days). In starved larvae, polyunsaturated, monounsaturated and saturated fatty acids were utilized as metabolic substrates until day 9. At day 10, all fatty acid levels remained stable or, at least, increased in larval body. Among fatty acids, docosahexaenoic acid 22:6 n-3 was used preferentially (20.3% from total fatty acids utilized) followed by palmitoleic acid 16:1 n-7 (13.9%) and then by oleic 18:1 n-9 (12.3%), linoleic 18:2 n-6 (10.1%), linolenic 18:3 n-3 (9.7%) and eicosapentaenoic 20:5 n-3 (9.1%) acids. On the other hand, arachidonic acid 20:4 n-6 was utilized very lowly (0.3%). In fed larvae, no utilization of body fatty acids was observed during the experiment. It seems that energy requirements (and others) of fed larvae were satisfied by feed.
Disciplines :
Anatomy (cytology, histology, embryology...) & physiology
Aquatic sciences & oceanology
Biochemistry, biophysics & molecular biology
Author, co-author :
Abi-Ayad, Sidi-Mohammed EL-Amine
Boutiba, Z.
Mélard, Charles ;  Université de Liège - ULiège > Centre de formation et de recherche en aquaculture (CEFRA)
Kestemont, P.
Language :
English
Title :
Dynamics of total body fatty acids during early ontogeny of pikeperch (Sander lucioperca) larvae
Publication date :
June 2004
Journal title :
Fish Physiology and Biochemistry
ISSN :
0920-1742
eISSN :
1573-5168
Publisher :
Springer, Dordrecht, Netherlands
Volume :
30
Issue :
2
Pages :
129-136
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 02 December 2010

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