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This program, led by the Growth and Flesh Quality group of the Fish Physiology and Genomics Laboratory (LPGP), and coordinated by Florence Lefèvre, is supported by the "Fonds européen pour les affaires maritimes et la pêche" (FEAMP) for 3 years, starting from 1/12/2017.

After egg production, fish flesh becomes increasingly soft and watery and as such inappropriate for market. To valorize those fish, restoration of their flesh organoleptic qualities is mandatory. Moreover, biological processes underlying muscle recovery after spawning remain almost unknown, and the post-ovulation "restoring" step might be optimized by adequate rearing practices that still need to be clarified.

The objectives of the project are :

• To describe the dynamics of muscle recovery and the restoration of flesh quality.
• To identify breeding determinants of this recovery phase, in particular the effect of (i) the  level of energetic reserves of the females determined either by the genetic origin, or by feed rationing before spawning, (ii) fish handling conditions at the time of spawning with an assessment of the level of stress, (iii) the impact of the fasting time and assessment of feeding behavior.
• To make an inventory of the current practices of broodstock management before, during and after  spawning
• To organize theoretical and practical exchange days between partners, on optimizing the conduct of the "restoring" phase.

The partners of the project are :

• Laboratoire INRA de Physiologie et Génomique des Poissons (LPGP)
• Pisciculture Expérimentale INRA des Monts d'Arrée (PEIMA)
• Bretagne Truite