Albumen powder richening in antimicrobial peptide fly maggot, preparation method for albumen powder and feed additive of albumen powder

The present invention discloses a protein-rich antimicrobial peptides maggot powder and its method of preparation and feed additives. The protein-rich antimicrobial peptide maggot powder was prepared by a method comprising the steps of: (1) feeding into flies, oviposition trap, after hatching, the larvae to diet; (2) of the larvae induced by ultrasound; (3) continues feeding, the larvae were collected, cleaned, disinfected after treatment, tissue homogenate mashed; (4) filtered, and the filtrate was 0 ~ 5 ℃ treatment to remove the surface lipid components, and dried to obtain protein powder; protein powder was added excipients, granulating to obtain a feed additive. The present invention employs an ultrasonic stimulation mode under certain conditions induced larvae, houseflies such small molecules in vivo antibacterial peptide-based active ingredient content was significantly increased feed additive promoting the growth of certain vannamei, crucian carp, enhance disease effect.