| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| 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
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| Autores: |
Le Boucher, Richard
Vandeputte, Marc
Dupont-nivet, Mathilde
Quillet, Edwige
Mazurais, David
Robin, Jean
Vergnet, Alain
Medale, Francoise
Kaushik, Sadasivam
Chatain, Beatrice
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| Data: |
2011-03
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| Ano: |
2011
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| Palavras-chave: |
Genotype by diet x environment interaction
European sea bass
Plant diet
Genetic correlation
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| 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.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00032/14335/12374.pdf
DOI:10.1111/j.1365-2109.2010.02654.x
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| Editor: |
Wiley-blackwell
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| Relação: |
http://archimer.ifremer.fr/doc/00032/14335/
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| Formato: |
application/pdf
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| Fonte: |
Aquaculture Research (1355-557X) (Wiley-blackwell), 2011-03 , Vol. 42 , N. 4 , P. 583-592
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| Direitos: |
2010 Blackwell Publishing Ltd
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