THE EFFECT OF FEEDING BLACK SOLDIER FLY LARVAE WITH DIFFERENT TYPES OF FEED ON THE CHROMATOPHORE CELL RESPONSE IN KOI FISH

This study aimed to analyze the optimal type of BSFL feed based on carotenoid content testing and determine the BSFL feed type that can enhance the color quality and chromatophore cell response in Koi fish.The study employed an experimental approach with a completely randomized design (CRD) comprising 4 treatments and 3 replications: A -Commercial Feed, B -BSFL fed with pumpkin, C -BSFL fed with carrots, and D -BSFL fed with tomatoes.Koi fish with a length of 5-6 cm were used for the experiment.The results showed that feeding BSFL with carrots produced the highest carotenoid content in BSFL, at 1.1631 g/g.This treatment also significantly impacted (P<0.05) the color quality of the fish, scoring 25.08 on the Toca Colour Finder scale.The treatment of feeding BSFL with carrots also resulted in the highest number of chromatophore cells, with 3491 cells.Therefore, it is recommended to feed Koi fish with BSFL fed with carrots, as they have a high carotenoid content and can effectively enhance the color quality and chromatophore cells of Koi fish.