Whole Black Soldier Fly Larvae (Hermetia illucens) as Dietary Replacement of Extruded Feed for Tambaqui (Colossoma macropomum) Juveniles

The black soldier fly (BSF, Hermetia illucens) is a prominent insect species and novel alternative ingredient for aquafeeds. This study aimed to evaluate the replacement of commercial feed with fresh whole larvae (BSFL) Colossoma macropomum. Juvenile tambaqui (115.2 ± 0.9 g/fish) were stocked in 800 L tanks (11 fish/tank) operating as recirculating system. dietary treatments consisted only (BSFL), 50:50 BSFL: (BSFL: CF), or (CF), fish fed apparent satiation 120 days. At end feeding trial, group weighed, blood muscle collected hematological sensorial evaluations. Fish BSFL:CF presented similar growth performance carcass yield that CF. high fat content contributed highest values viscerosomatic index (7.01%; 6.56%), plasmatic triglycerides (312.1 mg/dL; 295.1 mg/dL), cholesterol (120.6 119.1 mg/dL) provided BSFL BSFL:CF, respectively. However, better acceptance fillet sensory analysis was observed these fillets than from CF group. Feeding did not compromise production may have improved their fillets.