METHOD AND FEED FOR REDUCTION OF THE CONTENT OF UNDESIRED NUTRIENTS IN THE WATER DISCHARGED FROM A FISH FARM

摘要

A farming feed for fish in freshwater, the feed being of a pressed or extruded type and containing starch as an ordinary binder, wherein, in addition to the content of starch as an ordinary binder, there has been added to the feed up to 25 g per kg of constituent feed ingredients of a faecal binder of a non-starch type. A method for the reduction of the content of undesired nutrients in water discharged from a fish farm, wherein there is added to the feed ingredients mixture for a farming feed of a pressed or extruded type containing starch as an ordinary binder, up to 25 g per kg of constituent feed ingredients of a faecal binder of a non-starch type; the feed is fed the farming feed, and the faeces are removed from the fish farm.