@article{4e670dacd9534caa97bef258930b7818,
title = "Tropical Vegetable Oils Do Not Alter Growth Performance in African Catfish through a High n-6 Polyunsaturated Fatty Acids Biosynthesis Capacity",
abstract = "The main objective of this study was to determine the best vegetable oils (VO) for nutrition of African catfish by assessing the effects of a complete replacement of fish oil (FO) by different VO sources on its growth performance, fatty acid composition, and elongase-desaturase gene expression levels. Fish (16.2 g of initial body weight) were fed with five experimental isonitrogenous, isolipidic, and isoenergetic diets in which FO was totally replaced by cottonseed oil (CO), palm oil (PO), desert date oil (DO), or Shea butter (SB). Complete replacement of FO with VO did not affect growth performance except for low values in fish fed SB diet. Muscle n-3 LC-polyunsaturated fatty acids (PUFA) were significantly reduced in fish fed VO-based diets when compared with FO fed fish. However, the muscle arachidinic acid (ARA) levels in phospholipid class were 1.4 to 1.6 times higher in fish fed CO and DO diets than FO fed fish despite the lower ARA suppliers from these VO-based diets, suggesting endogenous LC-PUFA biosynthesis from PUFA precursors in fish fed these VO. The fads2 and elovl5 gene expression levels in liver of fish fed DO were also higher compared to FO controls. Therefore, all the results support the hypothesis that African catfish has higher biosynthesis capacity to convert vegetable n-6 PUFA precursors like linoleic acid (LNA, 18:2n-6) into n-6 LC-PUFA of the ARA type, compared to the conversion of vegetable α-linolenic acid (ALA, 18:3n-3) into n-3 LC-PUFA of the eicosapentanoic acid (EPA) or docosahexanoic acid (DHA) type. The results also indicate that DO can be recommended as the best alternative to FO replacement in African catfish nutrition.",
keywords = "ARA, Clarias gariepinus, elovl5, fads2, PUFA precursors, Vegetable oils",
author = "Aboubacar Sourabi{\'e} and Robert Mandiki and Florian Geay and Ahoul{\'e}, {Ange G.} and Nathan Naert and Aboubacar Toguyeni and Patrick Kestemont",
note = "Funding Information: Acknowledgements The authors are grateful to ARES-CCD (Acad{\'e}mie de Recherche et d{\textquoteright}Enseignement Sup{\'e}rieur – Commission de Coop{\'e}ration au D{\'e}veloppement-F{\'e}d{\'e}ration Wallonie Bruxelles) and DGD (General Directorate for Development, Ministry of Cooperation and Development, Federal Government of Belgium) for supporting this study as a part of the Concerted Initiative Project (Interuniversity program: “Projet PIC Aquaculture ULg/UPB Burkina Faso” of the University of Namur, Belgium, the University of Liege, Belgium, and the University Nazi Boni of Bobo-Dioulasso, Burkina Faso). Publisher Copyright: {\textcopyright} 2019 AOCS Copyright: Copyright 2019 Elsevier B.V., All rights reserved. Funding Information: Acknowledgements The authors are grateful to ARES-CCD (Acad{\'e}mie de Recherche et d{\textquoteright}Enseignement Sup{\'e}rieur – Commission de Coop{\'e}ration au D{\'e}veloppement-F{\'e}d{\'e}ration Wallonie Bruxelles) and DGD (General Directorate for Development, Ministry of Cooperation and Development, Federal Government of Belgium) for supporting this study as a part of the Concerted Initiative Project (Interuniversity program: “Projet PIC Aquaculture ULg/UPB Burkina Faso” of the University of Namur, Belgium, the University of Liege, Belgium, and the University Nazi Boni of Bobo-Dioulasso, Burkina Faso). Funding Information: The authors are grateful to ARES-CCD (Acad?mie de Recherche et d'Enseignement Sup?rieur ? Commission de Coop?ration au D?veloppement- F?d?ration Wallonie Bruxelles) and DGD (General Directorate for Development, Ministry of Cooperation and Development, Federal Government of Belgium) for supporting this study as a part of the Concerted Initiative Project (Interuniversity program: ?Projet PIC Aquaculture ULg/UPB Burkina Faso? of the University of Namur, Belgium, the University of Liege, Belgium, and the University Nazi Boni of Bobo-Dioulasso, Burkina Faso). The authors declare that they have no conflict of interest. Publisher Copyright: {\textcopyright} 2019 AOCS",
year = "2019",
month = may,
day = "1",
doi = "10.1002/lipd.12145",
language = "English",
volume = "54",
pages = "329--345",
journal = "Lipids",
issn = "0024-4201",
publisher = "Springer Verlag",
number = "5",
}