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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 93 Documents
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Sistem Budidaya Ikan Lele (Clarias sp.) dalam Kolam Terpal dengan Teknologi Nano Bubble Andriani, Yuli; Nurinsani, Rizka Amalia
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7534

Abstract

Catfish (Clarias sp.) farming is one of the fastest-growing aquaculture sectors in Indonesia. However, a major challenge in this industry is water quality deterioration, particularly low dissolved oxygen levels, which can cause stress, disease, and reduced fish productivity. Nano bubble technology offers an innovative solution to increase dissolved oxygen levels more efficiently than conventional aeration methods. This study employs a literature review method by analyzing various journals and scientific sources related to the application of nano bubble technology in catfish farming. The findings indicate that nano bubble technology can increase dissolved oxygen levels by up to 30% compared to conventional aeration, reduce toxic compounds such as ammonia and nitrite, and improve feed efficiency and fish growth. Additionally, nano bubbles enhance fish survival rates by up to 40% and reduce water pollution. Given these benefits, this technology has the potential to be an effective solution for improving the productivity and sustainability of catfish farming in Indonesia.
OPTIMIZING THE BREEDING AND REARING TECHNIQUES OF TRANSGENIC GLOFISH TETRA (Gymnocorymbus ternetzi) IN TROPICAL FRESHWATER AQUACULTURE SYSTEMS Bagus Dwi Hari Setyono; Dewi Putri Lestari; Thoy Batun Citra Rahmadani
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7548

Abstract

The transgenic GloFish Tetra (Gymnocorymbus ternetzi), engineered to express fluorescent proteins, is increasingly popular in the global ornamental aquaculture industry. However, optimized protocols for its breeding and larval rearing under tropical freshwater conditions remain underexplored. This study aimed to evaluate the effects of substrate type and larval stocking density on reproductive performance, larval survival, growth, feed utilization, and fluorescent color intensity in GloFish Tetra. A 3×3 factorial experiment was conducted at a tropical hatchery in Indonesia using three substrate types—no substrate (S0), artificial fiber mat (S1), and natural aquatic vegetation (Hydrilla verticillata, S2)—combined with three stocking densities: 15, 10, and 5 larvae per liter. Key parameters, including fecundity, fertilization rate, hatchability, survival rate (SR), specific growth rate (SGR), feed conversion ratio (FCR), and color intensity (∆E), were measured and statistically analyzed using a two-way ANOVA. Results demonstrated that the S2-D5 treatment (natural vegetation with low density) significantly improved fecundity (330.2 ± 10.8 eggs), hatchability (82.3 ± 2.7%), SGR (4.30 ± 0.11%/day), and color intensity (∆E = 17.6 ± 1.0), while achieving the lowest FCR (1.31 ± 0.07). In contrast, high-density and substrate-free conditions (S0-D15) yielded the poorest performance across all metrics. These findings underscore the crucial role of environmental enrichment and density management in enhancing both biological and aesthetic traits in GloFish Tetra. This study presents a validated protocol for enhancing hatchery success and improving the ornamental quality of transgenic fish in tropical aquaculture systems.
Biomassa dan Rendemen Agar Pada Gracilaria sp. dengan Penggunaan Konsentrasi TAN yang Berbeda Ardi Ikhsan; Diniarti, Nanda; Muhammad Sumsanto
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7551

Abstract

Gracilaria sp. is a type of agar-producing seaweed that is widely used in the food, cosmetics, and pharmaceutical industries. Additionally, Gracilaria sp. plays a crucial role in absorbing nitrogen, phosphorus, and carbon, thereby helping to maintain the balance of aquatic ecosystems. This research aimed to analyze the biomass and agar yield content of the seaweed Gracilaria sp. by fertilizing with different TAN concentrations. This research was carried out from August to November at the Aquaculture Environmental Laboratory, Mataram University. The method used was a Completely Randomized Design (CRD) with five Total Ammonia Nitrogen (TAN) concentration treatments: P0 (control), P1 (0.01 mg/L), P2 (0.025 mg/L), P3 (0.050 mg/L), and P4 (0.975 mg/L), each with three replications. Parameters observed included absolute weight, specific growth rate (LPS), thallus length, survival, agar yield, and water quality. The results showed that the addition of different TAN concentrations did not have a significant effect on seaweed growth based on the ANOVA test at the 0.05 level. The results of the 2nd-order polynomial regression analysis showed that there was a strong relationship with agar yield, a moderate relationship with growth, and a weak relationship with thallus length with TAN concentration. This research concluded that the TAN concentration used was not able to provide nutrients for growth, but only to maintain life.
ANALYSIS OF THE EFFECT OF KETAPANG LEAF EXTRACT (Terminalia catappa) ON THE GROWTH AND PROFILE OF BACTERIA IN THE MAINTENANCE OF INDIAN BOTIA FISH LARVAE (Botia lohachata) Laily Fitriani Mulyani; Asri, Yuliana
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7574

Abstract

This study aimed to evaluate the potential of ketapang leaf extract (Terminalia catappa) as an agent to enhance the survival and growth of Botia india (Botia lohachata) larvae, as well as its effect on the bacterial profile in the rearing medium. The experiment was conducted using a Completely Randomized Design (CRD) with five different treatment doses of ketapang leaf extract, namely 0 g/L (control), 0.3 g/L, 0.6 g/L, 0.9 g/L, and 1.2 g/L, each replicated three times. The observed parameters included survival rate, growth (absolute weight and absolute length), and the total bacterial count in the rearing medium. The results showed that the administration of ketapang leaf extract had a significant effect (p<0.05) on the survival, absolute weight, and absolute length of Botia india larvae. The treatment with a dose of 0.3 g/L resulted in the highest survival rate, reaching 95%, with an average larval absolute weight of 0.132 g and an absolute length of 1.35 cm. Quantitative analysis of the bacterial count showed that the administration of ketapang leaf extract, especially at a dose of 0.3 g/L, effectively suppressed bacterial growth in the rearing medium compared to the control group. Conversely, higher doses of ketapang leaf extract (0.9 g/L and 1.2 g/L) showed a tendency towards decreased effectiveness. The conclusion of this study is that ketapang leaf extract can be utilized as a natural alternative to improve the survival, growth, and health of Botia india larvae, with an optimal dose of 0.3 g/L. The utilization of ketapang leaf extract in ornamental fish farming can reduce dependence on synthetic chemicals that have potentially harmful environmental effects.
BUDIDAYA BENIH IKAN NILA (Oreochromis niloticus) PADA MEDIA RECIRCULATING AQUACULTURE SYSTEM (RAS) DAN SISTEM AERASI: BUDIDAYA BENIH IKAN NILA (Oreochromis niloticus) PADA MEDIA RECIRCULATING AQUACULTURE SYSTEM (RAS) DAN SISTEM AERASI Asri, Yuliana; Septiana Dwiyanti; Laily Fitriani Mulyani
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7577

Abstract

Tilapia, as a high-value consumption fish, is one of the main reasons why fish farmers choose it as a key aquaculture commodity whose cultivation technology continues to be developed. Flow-through water system is one of the commonly used methods in tilapia farming in Indonesia. However, this method has several drawbacks, such as the continuous use of large volumes of water. Additionally, the environmental impact is a concern, as uneaten feed and feces discharged through the pond's outlet can pose a threat to the surrounding environment. To address these issues, technological advancements in tilapia farming continue to be developed, including the implementation of Recirculating Aquaculture System (RAS) and aeration systems. The use of these two technologies aims to improve water quality, reduce excessive water usage, and minimize environmental impacts associated with tilapia aquaculture activities. This study compares the two systems—RAS and aeration—using tilapia fingerlings measuring 5–6 cm over a 20-day cultivation period. Water quality and growth data were analyzed descriptively. The results showed that ammonia levels in the RAS system reached 0.08 mg/L, which falls within the optimal range for tilapia cultivation. In contrast, the aeration system showed ammonia levels of 1.6 mg/L, which exceeds the optimal threshold. Based on these findings, it can be concluded that tilapia fingerling cultivation using the RAS system is more effective at stabilizing and reducing ammonia levels in the culture medium compared to the aeration system.
EFEKTIVITAS KULTUR Chaetoceros sp. SEBAGAI PAKAN ALAMI KERANG MUTIARA: PERBANDINGAN METODE LABORATORIUM DAN LAPANGAN Fitrah Putra Amnur; Mukhlis, Alis; Damai Diniariwisan
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7583

Abstract

Chaetoceros sp. is an important microalga in aquaculture that requires culture system optimization to enhance productivity and production efficiency. This study aimed to analyze the growth dynamics of Chaetoceros sp. in laboratory and outdoor culture systems and evaluate growth parameters and water quality factors affecting culture productivity. The study employed a completely randomized design with two treatments: laboratory culture (environmental control) and outdoor culture (natural conditions). Parameters observed included population density, relative growth, specific growth rate, doubling time, and water quality parameters (temperature, pH, salinity, light intensity) over 4 days of cultivation. Laboratory culture demonstrated superior performance with maximum population density of 3.60 × 10⁶ cells/ml, relative growth of 105.7 ± 12.27, specific growth rate of 19.7 ± 1.8%, and doubling time of 3.88 ± 0.34 days. Outdoor culture yielded maximum density of 3.28 × 10⁶ cells/ml, relative growth of 87.1 ± 12.44, specific growth rate of 16.9 ± 2.0%, and doubling time of 4.49 ± 0.51 days. Both methods achieved optimal exponential phase on day 3. Water quality parameters showed better stability in laboratory culture with lower variability. Strict environmental control in laboratory culture can reduce growth variability and improve predictability of Chaetoceros sp. culture results. Although laboratory culture is more technically efficient, outdoor culture remains viable for community applications considering cost efficiency and environmental sustainability.
PENGARUH PERBEDAAN PEMBERIAN PAKAN IKAN RUCAH DAN KERANG COKLAT (Mytilopsis adamsi) PADA PERTUMBUHAN KEPITING BAKAU (Scylla paramamosain) Arfat; Abidin, Zaenal; Priyambodo, Bayu
Journal of Fish Nutrition Vol. 5 No. 1 (2025): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v5i1.7565

Abstract

Mangrove crab is one of the leading export commodities in the fisheries sector which has a fairly high selling price at the farmer level. This commodity has great potential to be cultivated in the Asia-Pacific region. However, mangrove crab production in Indonesia is currently still dominated by wild catches because its cultivation activities have not developed optimally. to determine the effect of feeding trash fish and brown mussels on the growth and survival of Mangrove Crabs (S. paramamosain). This study was conducted for 90 days from December 2024 to March 2025. The research location was in the ponds of Candi Manik Village, Sekotong District, West Lombok Regency, West Nusa Tenggara. The research method used 2 treatments, namely trash fish and brown mussels, each of which was repeated 20 times so that 40 experimental units were obtained according to the number of crabs, the treatments tested were trash fish (R) and brown mussels (K). The research data were analyzed using statistical analysis at a real level of 5%. the analysis used to test the results of the experiment was the t-test. The data tested t is the Specific Growth Rate (SGR) value, absolute weight growth, relative weight growth, and crab molting frequency using the mhen withny test while the survival rate (SR) data is analyzed descriptively. The results of the study showed that the absolute, relative, specific weight growth of crabs, molting frequency and survival given feed using brown mussels were higher than those given feed using trash fish. Feeding brown mussels resulted in better absolute, relative, specific growth, molting frequency and survival compared to feeding trash fish on the growth of mangrove crabs. Water quality measurements were within the normal range for the life of mangrove crabs. Keywords: Trash Fish, Mangrove Crabs, Brown Mussels, Molting, Growth
PENGARUH KOMBINASI TEPUNG BEKICOT DALAM PAKAN TERHADAP PERTUMBUHAN IKAN NILA (Oreochromis niloticus) Sari, Yuri Purnama; Setyowati, Dewi Nur'Aeni; Lestari, Dewi Putri
Journal of Fish Nutrition Vol. 3 No. 1 (2023): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v3i1.1413

Abstract

ABSTRACT Tilapia (Oriochromis niloticus) is a freshwater fish that is widely cultivated and favored by the community, while the demand for tilapia is increasing along with the increasing public awareness of consuming fish as a source of animal protein. This research was conducted by experimental method using a completely randomized design (CRD) with 4 treatments and 3 replications. The treatments given were: Treatment 1: 100% feed formulation, Treatment 2: 70% feed formulation + 30% snail flour, Treatment 3: 65% feed formulation + 35% snail flour and treatment 4: 60% feed formulation + flour snails as much as 40% Based on the results of research that has been done, it can be concluded that the P2 treatment feed gave an absolute weight growth of 20.23 grams, an absolute length growth of 2.56 cm, a specific growth of 4.33%, the best FCR of P2 was 0, 51% and the results of P2 feed efficiency were higher than other treatments, namely 200.08%. The survival of tilapia with the addition of snail flour at a dose of 30% resulted in an SR of 83.33%. The addition of snail flour to feed with different doses can affect absolute weight, SGR, FCR, and EPP, but does not affect the absolute length and survival of fish. Keywords: Tilapia, Snail Flour
PENGARUH KOMPOSISI DAN DOSIS MEDIA TERHADAP PERTUMBUHAN CACING SUTRA (Tubifex sp.) Lumbessy, Salnida Yuniati; Hafsah, Hafsah; Lumbessy, Salnida Yuniarti; Lestari, Dewi Putri
Journal of Fish Nutrition Vol. 3 No. 2 (2023): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v3i2.1423

Abstract

This study aims to analyze the effect of media composition and dose on the growth of silkworms. The test animals used in this study were silkworms (Tubifex sp.). The method used in this study was an experimental method using a completely randomized design (CRD) consisting of 5 treatments and 3 replications in order to obtain 15 experimental units, namely P1 (50% fermented chicken manure, 25% fermented tofu dregs and 25% tapioca meal), P2 (50% sludge, 25% fermented tofu dregs and 25% tapioca meal), P3 (50% fermented chicken manure, 25% fermented tofu dregs and 25% fermented bran), P4 (50% mud, 25% tofu dregs fermented and 25% Fermented Bran), P5 (25% fermented chicken manure, 25% mud, 25% fermented tofu dregs, 25% Fermented Bran). The results showed that there was no effect between treatments on absolute growth and productivity but the use of substrates in silkworm cultivation for 30 days with a composition of 25% fermented chicken manure, 25% mud, 25% fermented tofu dregs and 25% fermented bran could increase absolute growth. silk worms amounted to 7.2 g and a productivity value of 0.76 g / cm2.
Pemanfaatan Limbah Bubur Kopi (Coffee pulp) dalam Budidaya Perikanan (Review) Diamahesa, Wastu Ayu; Muahiddah, Nuri
Journal of Fish Nutrition Vol. 3 No. 1 (2023): Journal Of Fish Nutrition
Publisher : Journal of Fish Nutrition

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jfn.v3i1.2759

Abstract

From several decades ago until today, coffee consumption has been a cultural norm. Coffee pulp (CP) is a byproduct of the initial separation of husks or seeds from coffee fruits. The increase in coffee production will lead to an increase in CP residues and refuse, which, if left unchecked, will result in environmental issues. Several previous studies have attempted to address this waste by focusing on organic fertilizer products, enhancing soil conditions, biological control, animal feed, and human sustenance. However, only a small number of researchers have conducted studies utilizing CP, and most of them have not been successful in incorporating this raw material into fish nutrition. Consequently, the purpose of this review is to characterize the potential of CP in the field of aquaculture so that additional research can be conducted using this raw material.

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