verre (1) aliment (1) poisson (1) ferme (exploitation) (1) expérience scientifique (1) Food (1) Water (1) Growth (1) Glass (1) Food (1) Fishes (1) Feeds (1) Eels (1) Days (1) Conversion (1) Body weight (1) Anguilla anguilla (1) Growth (1) exploitation agricole (1)