Optimising Lupines for Aquaculture
The aim of this research project is to find approaches to make lupin meal more attractive for fish feed production thereby limiting the ecologically controversial use of fishmeal and importation of soy, while encouraging the ecologically sustainable cultivation of lupins in Europe. In a multidisciplinary approach, both chemical-biological and socio-economic aspects will be investigated. The project investigates the degree to which the suitability of lupin meal, as a protein source in aquaculture feeds, can be increased by enzymatic pretreatment of lupin meal with phytase (Natuphos) and enzymes to cleave indigestible polysaccharides (Natugrain: endo-1, 4-beta-xylanase and endo-1, 4-beta-glucanase).
Potential taste problems associated with diets with a high proportion of plant-based ingredients intended for predatory fish will be addressed by the development of a novel coating process. At the socio-economic level, the acceptance of increased use of lupin meal in fish feed will be analyzed and solutions to commercially promote this nutritionally and ecologically beneficial raw material will be sought. Overall intended results are a practicable and viable process for more efficient use of lupins in aquaculture and the development of strategy papers for promotion of future aquaculture applications for this valuable protein source.
Funded by "Bundesministerium für Ernährung und Landwirtschaft" via the BMEL Eiweißpflanzenstrategie (Germany Protein/Legume Plant Strategy)