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Dewi Putri Lestari
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Journal of Fish Nutrition
Published by Universitas Mataram
ISSN : -     EISSN : 27983323     DOI : https://doi.org/10.29303/jfn.v2i2
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
The Journal of Fish Nutrition (JFN) has an objective to publish and provide high-quality scientific contributions to the field of fish nutrition. These contributions are sourced from innovative research that encourages science and technology development in the field of fish nutrition on a national and international scale. This journal serves as a communication medium for researchers, academics, students, and communities. This journal is published two times a year in June, and December. We accept review papers and full research articles. The Journal of Fish Nutrition’s scope includes nutritional sciences, and feed technology for various levels of the feed industry for various types of freshwater to marine fish in the tropics.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 104 Documents
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PENGUNAAN TEPUNG BIOFLOK SEBAGAI BAHAN BAKU PAKAN UNTUK  IKAN NILA (Oreochromis niloticus) Sa'ban Putri, Nurfajrin; Saban Putri, Nurfajrin; Abidin, Zaenal; Asri, Yuliana
Journal of Fish Nutrition Vol. 6 No. 1 (2026): Journal of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v6i1.9584

Abstract

Penelitian ini bertujuan untuk mengetahui persentase tingkat penggunaan tepung bioflok sebagai bahan baku pakan untuk ikan nila (Oreochromis niloticus). Metode yang digunakan adalah metode eksperimental menggunakan Rancangan Acak Lengkap (RAL) dengan 5 perlakuan dan 3 kali ulangan. Perlakuan yang diuji adalah P0  yaitu pakan komersial  tanpa bioflok (kontrol), dan pakan yang menggunakan bioflok sebesar 20% (P20) , 25% (P25), 30% (P30), dan 35% (P35). Parameter yang diamati meliputi bobot mutlak dan laju pertumbuhan spesifik. Data yang diperoleh dianalisis menggunakan uji Kruskal–Wallis pada taraf signifikansi 95%. Hasil penelitian menunjukkan bahwa penggunaan tepung bioflok hingga 35% dalam pakan menghasilkan pertumbuhan spesifik dan mutlak yang tidak berbeda nyata (p>0,05)  dengan pakan komersial. Pertambahan bobot mutlak yang diperoleh berkisar antara 1,9–2,6 g dan laju pertumbuhan spesifik yang berkisar antara 1,6–2,1 %/hari. Hasil penelitian ini membuktikan bahwa tepung bioflok dapat digunakan sebagai bahan baku pakan dengan tingkat penggunaan mencapai 35% dalam pakan.
WATERBORNE POLYSTYRENE MICROPLASTIC EXPOSURE DEPRESSES GROWTH PERFORMANCE OF SIAMESE FIGHTING FISH (Betta splendens) Wahyu Budi Utomo, Lalu; Affandi, Rangga Idris; SETYONO, Bagus Dwi Hari
Journal of Fish Nutrition Vol. 6 No. 1 (2026): Journal of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v6i1.10033

Abstract

This study evaluated the effects of waterborne polystyrene microplastic exposure on the growth performance of Siamese fighting fish (Betta splendens) over a 45-day rearing period. A completely randomized design with four treatments and three replicates was applied: 0, 50, 100, and 150 mg/L. The evaluated growth variables comprised absolute length gain, specific length growth rate, absolute weight gain, specific growth rate, feed conversion ratio (FCR), and survival rate (SR). Data were analyzed using one-way ANOVA followed by Tukey’s test at the 5% significance level. Polystyrene microplastic exposure significantly affected absolute length gain, specific length growth rate, absolute weight gain, and specific growth rate (p < 0.05). Fish reared without microplastic exposure consistently showed the highest growth performance, whereas the 150 mg/L treatment produced the lowest values across the principal growth endpoints. By contrast, FCR tended to increase with increasing microplastic concentration, but the effect was not statistically significant (p > 0.05). SR remained 100% in all treatments, indicating that the tested exposure levels produced sublethal rather than lethal effects under the present experimental conditions. Water quality remained within a range generally tolerated by betta fish, suggesting that the observed response was more closely associated with microplastic exposure than with overt deterioration of the rearing medium. Overall, waterborne polystyrene microplastic exposure reduced the growth performance of B. splendens and should be considered a relevant emerging stressor in ornamental fish culture.
PENGARUH PEMBERIAN PAKAN TEPUNG KEPALA IKAN TUNA (Thunnus sp.) TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis noliticus) Lestari, Wina Indah; Putri Lestari, Dewi; Rahmadani, Thoy Batun Citra
Journal of Fish Nutrition Vol. 6 No. 1 (2026): Journal of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v6i1.10041

Abstract

Tujuan dari penelitian ini untuk mengetahui pengaruh penggunaan tepung kepala ikan tuna sebagai substitusi pakan komersial terhadap pertumbuhan dan efisiensi pemanfaatan pakan ikan nila. Metode yang digunakan adalah metode eksperimen dengan Rancangan Acak Lengkap (RAL) yang terdiri atas lima perlakuan dan tiga ulangan, yaitu P1 (100% pakan komersial), P2 (75% pakan komersial + 25% tepung kepala ikan tuna), P3 (50% pakan komersial + 50% tepung kepala ikan tuna), P4 (45% pakan komersial + 55% tepung kepala ikan tuna), dan P5 (100% tepung kepala ikan tuna). Parameter yang diamati meliputi tingkat konsumsi pakan (TKP), pertumbuhan berat mutlak, panjang mutlak, laju pertumbuhan spesifik (SGR), efisiensi pemanfaatan pakan (EPP), rasio konversi pakan (FCR), dan kelangsungan hidup (SR). Data dianalisis menggunakan uji ANOVA dan dilanjutkan dengan uji Duncan pada taraf kepercayaan 95%. Hasil penelitian menunjukkan bahwa pemberian pakan dengan kombinasi tepung kepala ikan tuna berpengaruh nyata (P<0,05) terhadap berat mutlak, SGR, EPP, FCR, dan konsumsi pakan, namun tidak berpengaruh nyata (P>0,05) terhadap panjang mutlak dan kelangsungan hidup. Perlakuan terbaik diperoleh pada P4 dengan nilai berat mutlak 4,93 g, SGR 0,024 %/hari, EPP 54,11%, dan FCR 1,85. Berdasarkan hasil penelitian, dapat disimpulkan bahwa tepung kepala ikan tuna dapat digunakan sebagai bahan substitusi pakan komersial dan memberikan hasil optimal pada tingkat penggunaan 55%.
PLANKTON DYNAMICS AS NATURAL FOOD INDICATORS DURING NILE TILAPIA (Oreochromis niloticus) LARVAL REARING IN AQUAPONIC, BIOFLOC, AND AQUABIOPONIC SYSTEMS Haeriah, Sri Asnawati; Amir, Sadikin; SETYONO, Bagus Dwi Hari
Journal of Fish Nutrition Vol. 6 No. 1 (2026): Journal of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/2kwavv91

Abstract

Plankton communities are important in Nile tilapia larval rearing because they function as natural food, a pathway for nutrient and energy transfer, and an ecological indicator of changes in the rearing medium. This study evaluated plankton abundance, genus composition, and ecological indices during Nile tilapia (Oreochromis niloticus) larval rearing in aquaponic (AP), biofloc (BF), and aquabioponic (AB) systems. A 45-day experiment was conducted using a completely randomized design with three treatments and four replicates. Each experimental unit contained 30 L of water and 30 larvae. Plankton was sampled on days 0, 15, 30, and 45 by filtering 10 L of culture water, concentrating the sample to 50 mL, and observing the concentrated sample using a hemocytometer. Plankton community data were interpreted descriptively, and no statistical significance is claimed for plankton parameters. The three systems developed distinct plankton trajectories. AP showed gradual recovery of plankton abundance and an increase in diversity and evenness by day 45 (H’ = 1.79; E = 0.92). BF produced the highest final abundance, driven by Oscillatoria on day 45 (104.00 ×10³ ind. mL⁻¹; approximately 78% of the community), but showed lower final evenness (E = 0.42) and higher Simpson dominance (C = 0.76). AB showed an early Chlorella peak on day 15 (53.25 ×10³ ind. mL⁻¹) and later shifted toward a more even community by day 45 (H’ = 1.79; E = 0.92). These findings indicate that high plankton abundance does not necessarily represent a balanced natural food community. Based on descriptive plankton community indicators, AP and AB appeared more supportive of balanced plankton communities for tilapia larval rearing, whereas BF required stricter management of organic load, floc volume, pH, and nutrient input to prevent cyanobacterial dominance.

Page 11 of 11 | Total Record : 104

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