Breeding method of river crab fattening stage compound feed based on hermetia illucens addition

The invention provides a method for breeding river crab fattening stage compound feed based on hermetia illucens addition, and belongs to the technical field of aquaculture. Comprising the following steps: warehousing raw materials, and performing primary batching; primary mixing, secondary burdening and secondary mixing; the mixed material passes through a twin-screw extrusion bulking machine, and is compressed into feed particles through a roller and a mold in a granulation chamber; and packaging after counter-flow cooling and drying. Preparing bait and feeding. The feed formula based on replacing part of the protein source and the fat source by the hermetia illucens larvae is used for replacing iced fresh fish bait in river crab fattening, and the fattening efficiency of the feed formula is high and is superior to that of mackerel fattening; the meat percentage of the river crabs fattened by the feed formula is superior to that of mackerel fattening; the fatness of female river crabs is superior to that of