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Jurnal Akuakultur IndonesiaJurnal Akuakultur Indonesia

Color is a defining trait of ornamental fish, crucial for their aesthetic appeal, but it diminishes without pigment supplementation in their diet. Utilizing dragon fruit skin as a natural feed constituent offers a promising method to intensify fish coloration. This investigation aims to assess the impact of incorporating dragon fruit skin meal into fish feed on color vibrancy and growth performance, specifically focusing on comet fish. The test subjects, ranging from 4 to 6 cm in size and weighing 3.1 ± 0.2 grams, underwent examination. Employing a completely randomized design (CRD), the study involved four treatments replicated four times: treatment A (control), B (5% dragon fruit skin meal addition), C (10% addition), and D (15% addition). Before commencing the study, a preliminary assessment of dragon fruit skin meal was conducted, encompassing a chromameter-based color pigmentation test. Results revealed positive a (red) and b (yellow) values, a chroma value of 26.32 signifying carotenoid pigments, a hue value of 3.18° indicating a red-orange hue, and an antioxidant activity test exhibiting moderate antioxidant activity was observed, indicating the presence of antioxidant compounds. Findings demonstrated that a 15% addition of dragon fruit skin meal substantially enhanced color vibrancy across the fishs body sections, including the head, body, and tail. Although fish weight and length were influenced by the feed amendment, ANOVA analysis did not ascertain significant effects. Furthermore, treatment C exhibited the most favorable feed conversion ratio and specific growth rate, recording values of 0.09 ± 0.03 and 0.934 ± 0.215, respectively.

The addition of 15% dragon fruit peel powder into the feed can improve the color of the comet fish body.The best results for specific growth rate and feed conversion ratio were found in treatment C (addition of 10% dragon fruit peel powder).The study concludes that dragon fruit peel powder is safe to add to the feed for comet fish.

Penelitian lebih lanjut perlu dilakukan untuk menguji pengaruh berbagai metode pengolahan kulit buah naga terhadap kandungan nutrisi dan pigmennya, serta dampaknya terhadap kualitas warna ikan komet. Studi komparatif dapat dilakukan dengan membandingkan efektivitas kulit buah naga dengan sumber pigmen alami lainnya, seperti spirulina atau astaxanthin, untuk menentukan sumber yang paling optimal dan ekonomis. Selain itu, penelitian mengenai dosis optimal pemberian tepung kulit buah naga pada berbagai fase pertumbuhan ikan komet perlu dilakukan untuk memaksimalkan peningkatan kualitas warna dan pertumbuhan ikan, sekaligus menghindari potensi efek samping akibat pemberian dosis yang berlebihan. Penelitian lanjutan juga dapat difokuskan pada identifikasi dan karakterisasi senyawa-senyawa bioaktif spesifik dalam kulit buah naga yang berperan dalam peningkatan warna ikan, sehingga dapat dimanfaatkan untuk pengembangan produk pakan ikan yang lebih efektif dan inovatif.

  1. The effectiveness of dragon fruit peel Hylocereus polyrhizus in feed on color quality and growth performance... journal.ipb.ac.id/index.php/jai/article/view/55020The effectiveness of dragon fruit peel Hylocereus polyrhizus in feed on color quality and growth performance journal ipb ac index php jai article view 55020
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