Floating feed is currently the most widely used extrusion feed in aquaculture, and the technology is relatively mature. That is, the floating extruded feed pellets are heated and prepared by the modulator. After the fish feed materials enter the extruder, they are continuously stirred, heated, pressurized, matured, extruded, and then expanded and granulated. Compared with floating fish feed, sinking pellets has different requirements for the contrast weight.
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