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| Benhaim, David; Begout, Marie-laure; Pean, Samuel; Brisset, Blandine; Leguay, Didier; Chatain, Beatrice. |
| In various experiments under self-feeding conditions, sea bass groups could be divided into three categories regarding feeder actuation: high, low and zero-triggering fish. In all cases few high-triggering fish were responsible for a high percentage of the feed delivery. A question was raised about the role played by feeding motivation in such high-triggering status acquisition. It was approached by applying a 3-week fasting period in order to induce similar negative specific growth rate (SGR) in two groups of fish of similar mean weight but with either a low or a high coefficient of variation for weight (CVw)(T-low: CVw similar to 11%, 3 tanks of 60 fish each; T-high: CVw similar to 20%, 3 tanks of 60 fish each). These groups were created to test the... |
| Tipo: Text |
Palavras-chave: Personality; Plasticity; Feeding-behaviour; Self-feeder; Social structure. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00069/18004/15672.pdf |
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| Benhaim, David; Begout, Marie-laure; Pean, Samuel; Manca, Michael; Prunet, Patrick; Chatain, Beatrice. |
| Replacing aquaculture feeds based on fisheries-derived resources with plant-based diets could be a relevant strategy to improve the sustainability of aquaculture. Recent studies on sea bass have shown that the total and early replacement of marine products by plant products would have a moderate effect on fish growth and body lipid content. Whether a plant-based diet impacts behavioural and physiological traits possibly linked to fish welfare, is not known, however. Here, we studied the effect of a totally plant-based diet introduced at an early stage of sea bass development on self-feeding behaviour, learning ability in a T-maze and stress biomarkers. We first compared learning processes in self-feeding conditions, between naive fish fed a plant-based... |
| Tipo: Text |
Palavras-chave: Self-feeder; Plant-based diet; Learning; Exploratory behaviour; Cortisol; Dicentrarchus labrax. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00152/26309/24381.pdf |
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