Effects of Different Live Feeds on the Color Intensity, Growth Performance, and Survival of Koi Fish Fingerlings (Cyprinus rubrofuscus) | ||
| Egyptian Journal of Aquatic Biology and Fisheries | ||
| Articles in Press, Accepted Manuscript, Available Online from 19 October 2025 PDF (304.17 K) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/ejabf.2025.386912.6026 | ||
| Authors | ||
| Agung Luthfi Fauzan* 1; Nina Nurmalia Dewi2; Meylinda Anugrah Putri Perdana3; Muhammad Ahya Rafiuddin4 | ||
| 1Department of Aquaculture, Faculty of Food Security, Universitas Negeri Surabaya | ||
| 2Department of Aquaculture, Faculty of Fisheries and Marine, Universitas Airlangga | ||
| 3Aquaculture Study Program, Faculty of Fisheries and Marine, Universitas Airlangga | ||
| 4Noto Centre for Fisheries Science and Technology, Kanazawa University | ||
| Abstract | ||
| This study evaluated the effects of different live feeds on color intensity, growth performance, and survival of koi fish (Cyprinus rubrofuscus) fingerlings. A completely randomized design was employed with four treatments: P0 (control, no live feed), P1 (Tubifex), P2 (Artemia), and P3 (Daphnia), each with three replicates containing 250 fingerlings. Over a 49-day rearing period, significant differences were observed among treatments. The highest color intensity was recorded in the Tubifex-fed group (mean score: 2.86), followed by Artemia (2.73), control (2.26), and Daphnia (2.18). Specific growth rates (SGR) were the highest in the Artemia group (4.75%/day) and the lowest in the control group (3.53%/day), though these differences were not statistically significant. Survival rates were at their highest in the Tubifex group (95.10%), followed by Artemia (85.30%), Daphnia (64.90%), and control (62.00%). Analysis of variance indicated that live feed type significantly affected color intensity and survival (P< 0.05), deducting growth performance (P> 0.05). These findings suggest that Tubifex and Artemia can enhance the coloration and survival of koi fingerlings, highlighting the importance of selecting appropriate live feeds in koi fish hatchery phase. | ||
| Keywords | ||
| Koi fish; Live feed; Color intensity; Growth performance; Survival | ||
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