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INDONESIA
Jurnal Perikanan Universitas Gadjah Mada
Published by Universitas Gadjah Mada
ISSN : 08536384     EISSN : 25025066     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider scientific activities.
Arjuna Subject : -
Articles 460 Documents
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Application of Barracuda Fish Skin Gelatin (Sphyraena barracuda) on Characteristics of Liquid Smoke Flavored Ice Cream Sitoresmi, Riris; Swastawati, Fronthea; Suharto, Slamet
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.92919

Abstract

Gelatin can be applied to ice cream as a stabilizer. The flavors of ice cream on the market only focus on ordinary flavors such as chocolate, vanilla, and strawberry. Liquid smoke as a flavoring in ice cream can be used as an innovation. The purpose of this study was to determine the best concentration of liquid smoke in ice cream and determine the effect of adding gelatin with different concentrations on the physical quality of ice cream. The treatments used were liquid smoke with different concentrations (0%, 0.3%, 0.5%, and 0.7%) in the opening study and gelatin concentrations of 0%, 0.2%, 0.4%, and 0.6% in the main study with three repetition times. Parameters observed were hedonic, overrun, melting time, pH, and viscosity. The analysis showed that all test treatments had a significant effect (P<0.05). Adding liquid smoke with a concentration of 0,7% was the best treatment, with a hedonic value of 7.97<µ<8.17 (preferred by the panelists). The best treatment results for barracuda fish skin gelatin on the characteristics of ice cream were at a concentration of 0,4% with overrun results of 62,67% ± 0,58, melting speed 31.37±0.95 minutes, pH 6.33±0.02, viscosity of 2567.67±142.38 cP and hedonic value of 7.61 <µ <7.79 (preferred by the panelists).
The Effect of Adding Brackish Snail (Faunus ater) Flour to the Feed on the Growth of Dumbo Catfish (Clarias gariepinus) Sah, Risti; Herman, Roffi Grandiosa; Pratama, Rusky Intan; Haetami, Kiki
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.93023

Abstract

Decreased water quality can be caused by fish losing their appetite, resulting in a buildup of food waste in the water. One of the additional ingredients that can be used is brackish snail (Faunus ater) flour. This research aims to determine the effect of adding brackish snail (Faunus ater) flour to feed on the growth of African catfish seeds and the appropriate dosage in feed that can increase the growth of African catfish seeds. The method used in this research was experimental with a Completely Randomized Design (CRD) consisting of 4 treatments and 3 replications. The treatments used were (P0) control, (P1) 10% brackish snail (Faunus ater) flour, (P2) 15% brackish snail (Faunus ater) flour, and (P3) 20% brackish snail (Faunus ater) flour. The test fish used were African catfish fry weighing 3-4 g and 5-7 cm long. The container used is waring with a density of 20 fish per pound. The amount of feed given is 5% of the biomass of African catfish seeds. The observation data were analyzed using Analysis of Variance (ANOVA) with the F test at a test interval of 5%, if there were significant differences, continue with Duncan's multiple range test. The results showed that the addition of 10% brackish snail (Faunus ater) flour gave significant results with the highest absolute length growth of 13.3±0.18 cm, the highest absolute weight growth of 36.2±0.18 g, the highest survival of 98.3±2.8%, the lowest feed conversion ratio was 1.1±0.0.
The Effect of Gracilaria Liquid Organic Fertilizer Fermented with Different Starters on the Growth of Pakcoy Dewi, Eko Nurcahya; Tsaniya, Aulia Rahmawati; Purnamayati, Lukita
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 1 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.93277

Abstract

This research aimed to determine the effect of adding three different starters, such as Lactobacillus plantarum, Azospirillum sp., and Trichoderma sp., on gracilaria seaweed for bok choy growth. The starter optimized fermentation and improved fertilizer quality in growing bok choy. The seaweed was reduced in size, soaked in 1% phosphoric acid solution, then homogenized and heated with 3% molasses to provide microbial nutrition and 1% KOH to maximize mineral content. Fermentation was carried out for 14 days in the microbial exponential phase for decomposition. The results showed that the addition of L. plantarum and Trichoderma sp. to gracilaria seaweed liquid fertilizer produces the highest values of gibberellin (147 ppm), auxin (140 ppm), and cytokinin (96 ppm). Next, the fertilizer was applied to bok choy to determine the effect on its growth. The highest fresh yield of bok choy was 64.0±1.41 g, the highest chlorophyll A content was 6.70±0.01%, and chlorophyll B was 2.30±0.03%. Even though the control treatment had the highest C/N ratio compared to the other treatments, the highest yields of bok choy freshness, height, and leaf area were found when applying liquid fertilizer with L. plantarum and Trichoderma sp. starter. The study concluded that bok choy growth was significantly encouraged by fertilizer-seaweed with high levels of phytohormones compared to mineral content. Adding L. plantarum and Trichoderma sp. is a good starter for increasing the growth-promoting properties of liquid seaweed fertilizer.
Agarolytic Bacillus sp. FRAgK1 Screened from Gracilaria (Rhodophyta) Thallus as Probiotic Candidate for Abalone Abdullah, Faisal Zain; Istiqomah, Indah; Isnansetyo, Alim; Yasa, Ngurah Sedana; Ismail, Norshida
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.93662

Abstract

Agarolytic bacteria produce agarase, which may aid in the growth of cultured tropical abalone fed natural seaweed. Agarolytic bacteria can come from a variety of sources, such as seawater, abalone intestines, and dead seaweed. This study aimed to isolate, screen, describe, and identify agarolytic bacteria found in red macroalgae. Agarolytic bacteria isolated from Gracilaria segregated from the substrate at Drini Beach, Gunungkidul Regency, were qualitatively described using the agarolytic index, antibiotic susceptibility, acid resistance (pH 4), and safety test. We collected seven agarolytic isolates. FRAgK1 isolate had the highest agarolytic index, was sensitive to antibiotics, resistant to low pH conditions, and non-pathogenic to finfish, making it suitable for use as gut probiotics in abalone. The bacterium was short rod-shaped, Gram-positive, non-motile, lacked catalase and indol, and was unable to ferment lactose or sucrose. The 16S rRNA gene sequence of FRAgK1 was most like Bacillus subtilis, however only by 99.43%.
Concervation Status of Caught Fish on the Coast Pangandaran, Pangandaran District, West Java Kamiswara, Rendika; Herawati, Titin; Nurhayati, Atikah; Yustiati, Ayi
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.94288

Abstract

Pangandaran has high potential in the tourism and fisheries sectors. Marine resources that are open access and can be used by anyone cause the sustainability of resources to be threatened due to over-exploitation. Traditional fishermen are one of the livelihoods owned by the majority of coastal communities, especially in the Pangandaran Coastal area. However, fishing activities have not been carried out wisely, and become a threat to the sustainability of sustainable marine biota. Small fishermen get by-catch in the form of protected marine life and are included in the IUCN Red List and the CITES Appendix list. This research was conducted to find out the species of marine biota with important conservation status or included in the status of the IUCN red list and the CITES Appendix list caught and traded in the coastal areas of Pangandaran Regency. The research was conducted using field observation method with purposive sampling technique in 2 locations; the east coast and the west coast of Pangandaran. There are 47 fish species found in all research sites with conservation status not evaluated (12.8%), least concern (83.0%), near threatened (2.1%), vulnerable (2.1%), and included in CITES Appendix II (2.1%).
Modulation of Gut Microbiota, Nutrient Transport Gene Expression, and Growth of Red Hybrid Tilapia (Oreochromis sp.) Fed with Black Soldier Fly (Hermetia illucens) by Oral Probiotics Latifah, Ma'rufa Nurul; Murti, Fauziah Arelia Usmiara; Helmiati, Senny; Ismail, Norshida; Syakuri, Hamdan; Istiqomah, Indah; Murwantoko, Murwantoko; Isnansetyo, Alim
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.95268

Abstract

Maggot Black Soldier Fly (BSF) is a nutritionally rich alternative food for fish. The slow digestibility requires the combination with other technologies to produce fish with excellent growth. This study aims to investigate the impact of probiotic application on the growth, microbiome, and gene expression in the intestines of tilapia-fed black soldier fly (BSF) larvae. Tilapia intestines were examined after two months of rearing with three replications and two treatments: A) 30% maggots and 70% commercial pellets with probiotics, and B) 30% maggots and 70% commercial pellets without probiotics. We discovered that probiotics have a significant impact on the gut microbiomes of fish and their absolute growth. The amplicon sequence variant in the probiotic treatment (A) was 25, with dominance by Cetobacterium, Acinetobacter, Enhydrobacter, and Gemmobacter, while the non-probiotic treatment (B) was 8, with dominance by Cetobacterium and Turicibacter. The probiotic treatment increased the expression of Ghrelin, Muc-2, IL-1β, and I-FABP genes, but not the CD36 gene. These findings suggest oral probiotics can help boost tilapia production when fed maggot black soldier fly (Hermetia illucens).
Food and Feeding Habits of Osteochilus vittatus Valenciennes, 1842 and Barbodes binotatus Valenciennes, 1842, in Tamblingan Lake, Bali Sathyananta, Kadek Prayuda; Pertami, Nyoman Dati; Parawangsa, I Nyoman Yoga; Surya Pramana, Made Arya
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.97116

Abstract

Tamblingan Lake is the smallest lake in Bali and is inhabited by various species of fish, which are from the Cyprinidae family, namely bonylip barb and spotted barb. Information regarding the food and feeding habits of bonylip barb and spotted barb fish in Tamblingan Lake is unavailable. This study aims to determine and analyze the food and feeding habits of bonylip barb and spotted barb fish in Tamblingan Lake. Fish sampling was conducted from January to June 2019 in Tamblingan Lake using modified gill nets with a net size of 0.5, 1.0, 1.5, 2.0, 2.5, and 3.0 cm. Fishing was carried out at five stations with water characteristics representing the condition of Tamblingan Lake. Bonylip barb fish obtained during the study comprised 216 individuals, while the Spotted barb had 180 individuals. The average value of the relative intestinal length of bonylip barb fish ranged from 4.34 to 5.53, while that of the spotted barb fish was 0.89 to 1.30. The average value of the gastric fullness index of film fish ranges from 1.34 to 4.77, while the spotted barb is 0.32 to 0.42. The total IRI value of bonylip barb fish food in Tamblingan Lake is 924.32, while the spotted barb is 1,232.62, with the highest IRI value in both species coming from plankton. Bonylip barb and spotted barb in Tamblingan Lake developed a generalist feeding strategy with plankton food groups (planktivorous). Information related to these fishes can be used to formulate fish resource management in Tamblingan Lake.
Evaluation of BSF Larva Meal and Oil as White Shrimp Feed on Growth Performance, Body Composition, and Health Response Rizal, Muhammad; Astuti, Dewi Apri; Fahmi, Melta Rini
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.97636

Abstract

The goal of this study was to evaluate the use of BSF larvae meal and oil as feed components in order to determine their impact on Litopenaeus vannamei shrimp growth performance, nutritional composition, and health response. Three shrimp ponds, each with a diameter of 20 m, were stocked with 72.000 Litopenaeus vannamei post larvae (PL-8), resulting in a stocking density of 229 shrimp per square meter. The trial diets comprised three types: control diet (K), diet containing BSF larvae meal (A), and diet containing BSF larvae meal plus oil (B). The parameters observed in this study included shrimp growth and productivity, feed consumption, feed conversion ratio (FCR), survival rate, nutritional composition (proximate, amino acid profile and fatty acid profile), total bacteria in the shrimp's digestive tract, and total hemocyte count in the shrimp's hemolymph. It was found that subtituting fish meal with 34% BSF larvae meal did not affect the growth performance of shrimp raised in shrimp ponds, compared to the control treatment. The assessment of the amino acid profile has revealed minimal variation between treatment. Nevertheless, both treatments A and B exhibited a decreased concentration of unsaturated fatty acids, specifically omega-3 and omega-6, in comparison to control. Meanwhile, treatment B had the highest levels of saturated fatty acid and omega-9 fatty acid content.  
Implementation of Ecosystem Approach to Aquaculture (EAA) on Tilapia Commodities in Klaten District Nugroho, Adi; Priyono, Susilo Budi; Suadi, Suadi
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.97839

Abstract

Ministry of maritime affairs and fisheries (MMAF) has issued guidance on ecosystem approach aquaculture (EAA) as a tool for profitable and sustainable management of aquaculture areas. The Minapolitan area of Klaten district with the superior commodity Tilapia fish has not yet fully implemented EAA. The purpose of this study are: (1) evaluating the management of tilapia fish commodity cultivation areas in Klaten district based on EAA indicators and (2) providing recommendations for interventions to improve the management of tilapia cultivation fishery areas in Klaten district based on EAA indicators. The methods of data analysis used in this study is quantitative analysis using descriptive approach. Data collection uses triangulation techniques where respondents are determined intentionally (purposefully). The study site was in Minapolitan Area 1 (Karanganom, Tulung and Polanharjo) and Minapolitan Area 2 (Ngawen, Kebonarum, and South Klaten) of Klaten regency. The result showed that the management of aquaculture areas with Tilapia as a commodity in Klaten district based on the EAA parameter is in adequate condition with a value of 2.26 for Minapolitan Area 1 and 2.13 for Minapolitan Area 2. Recommendations for interventions are improvements to institutional parameters, monitoring, and evaluation, as well as the role of environmental management in the area.
Effectiveness of Green Mussel Shell Waste and Lime Peel as Toothpaste Fauzy, Insan; Hasanah, Afifah Nurazizatul; Pratama, Ginanjar
Jurnal Perikanan Universitas Gadjah Mada Vol 26, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.99418

Abstract

The problem is that waste produced from green mussel shells can result in environmental pollution. Green mussel shells can be used as raw material for making toothpaste. Toothpaste is a care product that has the function of caring for healthy teeth to prevent cavities that use a combination of green mussel shells and lime peel as the main ingredients. This study aims to determine the effectiveness of toothpaste derived from green mussel shells and lime peel. This research was carried out in four stages, namely making green mussel shell flour, making lime peel extract, making toothpaste formulations and testing which included organoleptic, carbohydrate, pH, antibacterial, calcium, viscosity, centrifugation and stability testing. The design used was a Completely Randomized Design (CRD) with 5 treatment levels with different concentrations of green mussel shells, namely P1 (0), P2 (16.5%), P3 (25%), P4 (33.5%), P5 ( 50%).The research results showed that the best treatment was toothpaste with a combination of clam shell powder and lime peel extract in the P5 treatment in the antibacterial test with an inhibitory power obtained of 156.67 ± 15.28. Treatment P5 with a concentration of 50% addition of green mussel shell flour was the best treatment for toothpaste preparations.

Page 44 of 46 | Total Record : 460

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