Abstract | Black soldier flies are used to make animal feed with quite high nutritional content and enough nutrients to make animal feed. We aimed to explore the appropriate level of supplementation of black soldier fly larvae in the diet of Muscovy ducks at 7-12 weeks old. A total of 200 Muscovy ducks were randomly assigned to five dietary treatments. The treatments named as following: CTL - control diet with fishmeal; LP20, LP40, LP60 and LP80 as replacing 20%, 40%, 60% and 80% of fishmeal protein with larval protein (LP) in the control diet with four replications, each replication with 10 ducks (5 males and 5 females). The results showed that the weight gain of the LP20, LP40, and LP60 treatments was as high as the CTL treatment. The FCR of ducks at CTL treatment (3.40) and LP20 treatment (3.44) was significantly (P

Keywords | Black soldier fly larvae protein, Fish meal, Growth, Muscovy duck