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Effect of selection for fasting tolerance on feed intake, growth and feed efficiency in the European sea bass Dicentrarchus labrax ArchiMer
Daule, Sophie; Vandeputte, Marc; Vergnet, Alain; Guinand, Bruno; Grima, Laure; Chatain, Beatrice.
Feed efficiency is a major goal for aquaculture sustainability, and selecting fish to genetically enhance this trait would be highly valuable. However, no selective breeding program specifically targeted to feed efficiency exists for farmed fish, mostly because of the difficulty of measuring individual feed intake. However, a negative phenotypic correlation between feed efficiency and weight loss at fasting has been previously demonstrated in sea bass submitted to feed deprivation (FD). We mated sea bass parents selected for their high (FD+) or low (FD-) weight loss at fasting to produce FD+ and FD- progeny, which were reared in a single tank to avoid common environmental effects. At 8 months of age, 1200 of those fish were submitted to three alternating...
Tipo: Text Palavras-chave: European sea bass; Dicentrarchus labrax; Selective breeding; Feed efficiency; Fasting tolerance.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00189/29985/28483.pdf
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