Data/hora: 02/06/2024 07:46:39

Provedor de dados: | 5
País: | France
Título: | A first insight into genotype x diet interactions in European sea bass (Dicentrarchus labrax L. 1756) in the context of plant-based diet use
Autores: | Le Boucher, Richard; Vandeputte, Marc; Dupont-nivet, Mathilde; Quillet, Edwige; Mazurais, David; Robin, Jean; Vergnet, Alain; Medale, Francoise; Kaushik, Sadasivam; Chatain, Beatrice.
Data: | 2011-03
Ano: | 2011
Palavras-chave: | Genotype by diet x environment interaction; European sea bass; Plant diet; Genetic correlation.
Resumo: | 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.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00032/14335/12374.pdf

DOI:10.1111/j.1365-2109.2010.02654.x

Editor: | Wiley-blackwell
Relação: | http://archimer.ifremer.fr/doc/00032/14335/
Formato: | application/pdf
Fonte: | Aquaculture Research (1355-557X) (Wiley-blackwell), 2011-03 , Vol. 42 , N. 4 , P. 583-592
Fonte: | 2010 Blackwell Publishing Ltd