FEED MANIPULATION TO ENHANCE COLOR BRIGHTNESS IN ORNAMENTAL FISH: LITERATURE REVIEW

The main attraction of ornamental fish is their color.However, the color of ornamental fish can deteriorate in quality, which will ultimately affect their selling price.One of the efforts to enhance the brightness of ornamental fish colors is through the supplementation of carotenoids derived from natural ingredients into the feed.The aim of this research is to explore various natural carotenoid sources supplemented through feed, which have been proven effective in enhancing the color brightness of various ornamental fish species.Data collection was conducted by reviewing various scientific literature relevant to the chosen research topic.The literature was sourced from the Google Scholar and ScienceDirect databases.The results show that several plants such as Water Hyacinth (Eichhornia crassipes), Indigofera (Indigofera zollingeriana), Kepok Banana (Musa balbisiana colla), Red Bell Pepper (Capsicum annuum L.), Sesban (Sesbania grandiflora), Melinjo (Gnetom gnemon), Yellow Pumpkin (Cucurbita moscheta durch), Moringa (Moringa oliefera), Marigold (Tagetes erecta), Purple Sweet Potato (Ipomoea batatas L.), Beet (Beta vulgaris), Tomato (Solanum lycopersicum), Carrot (Daucus carota), Papaya (Carica papaya), Red Dragon Fruit (Hylocereus polyrhizus), and Red Spinach (Amaranthus tricolor L) have been proven effective in enhancing the color brightness of several ornamental fish species.This is due to the carotenoid content such as -carotene, -carotene, lycopene, lutein, and zeaxanthin present in each of the plants.The utilization of carotenoids sourced from natural materials is expected to reduce production costs in ornamental fish farming.