TY - JOUR T1 - A first insight into genotype x diet interactions in European sea bass (Dicentrarchus labrax L. 1756) in the context of plant-based diet use A1 - Le Boucher,Richard A1 - Vandeputte,Marc A1 - Dupont-Nivet,Mathilde A1 - Quillet,Edwige A1 - Mazurais,David A1 - Robin,Jean A1 - Vergnet,Alain A1 - Medale,Francoise A1 - Kaushik,Sadasivam A1 - Chatain,Beatrice AD - INRA, Genet Anim & Biol Integrat UMR1313, Jouy En Josas, France. AD - IFREMER, F-34250 Palavas Les Flots, France. AD - AgroParisTech, Genet Anim & Biol Integrat UMR1313, Paris, France. AD - IFREMER, UMR1067, Lab Nutr Aquaculture & Genom, Equipe Nutr Poissons Marins, Plouzane, France. AD - INRA, UMR1067, Lab Nutr Aquaculture & Genom, St Pee Sur Nivelle, France. UR - https://doi.org/10.1111/j.1365-2109.2010.02654.x DO - 10.1111/j.1365-2109.2010.02654.x KW - genotype by diet x environment interaction KW - European sea bass KW - plant diet KW - genetic correlation N2 - This preliminary study assessed genotype x diet interaction in late growth of European sea bass (Dicentrarchus labrax) fed with either a fish meal (FM)- or a fish oil (FO)-based diet (M) or an all-plant-based (PB) diet. A total of 550 fish from 224 families were reared together and tagged. DNA was sampled and microsatellites were used to assign parentage. When fish weight was 192 +/- 54 g, two tanks were fed with M (FM: 100%; FO: 100%) and two others with PB (FM: 0% and FO: 0%). Body weight (BW), fork length (FL) and fillet lipid content (CorrFat) were analysed with a linear model and with REML methodology. We observed no significant differences between groups, but a slightly lower (P=0.03) daily growth coefficient in sea bass fed PB than in those fed M. Heritability estimates of BW differed significantly from zero (PB: 0.37 +/- 0.18; M: 0.47 +/- 0.24). Sire x diet interactions were significant and genetic correlations ranged between 0.51 and 0.87, showing genotype x diet interaction for BW and CorrFat. For the first time, genetic parameters in the context of total replacement of marine fishery by-products were estimated in European sea bass, showing re-ranking of family performances with extremely contrasted diets. Y1 - 2011/03 PB - Wiley-blackwell JF - Aquaculture Research SN - 1355-557X VL - 42 IS - 4 SP - 583 EP - 592 ID - 14335 ER -