[Report, 64: Fish feed low in phosphorus content]

aliment pour animaux alimentation des poissons ammodytes bones carcass composition composition de la carcasse danemark denmark dinamarca economia economics economie environmental impact enzimas enzyme enzymes farine de poisson feed conversion efficiency feeds fish culture fish feeding fish meal fosfatos harina de pescado huesos hydrolyse hydrolysis impact sur l'environnement impacto ambiental oncorhynchus mykiss os phosphate phosphates piensos piscicultura pisciculture sprattus