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Tamayo, David; Ibarrola, Irrintzi; Urrutxurtu, Inaki; Navarro, Enrique. |
Juvenile oysters (Crassostrea gigas) (produced in November 2009) reared under uniform hatchery conditions for 4 months were selected for extreme growth rate differences by repeatedly taking larger and smaller individuals to achieve weight differences > 30x between fast (F) and slow (S) growers. The physiological basis of differential growth was analyzed in experiments in June 2010, where components of energy gain (clearance and ingestion rates and absorption efficiency), energy loss (metabolic rates) and resulting scope for growth (J h(-1)) were compared for groups of F and S oysters fed three different ration levels (a parts per thousand 0.5, 1.5 and 3.0 mg of total particulate matter L-1). In both F and S oysters, a higher food ration promoted... |
Tipo: Text |
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Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00201/31244/29909.pdf |
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