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All Journal MITRA: Jurnal Pemberdayaan Masyarakat Habitat: Jurnal Ilmiah Ilmu Hewani dan Peternakan
Beni Setha
Universitas Pattimura
Agriculture, Biological Sciences & Forestry Humanities Economics, Econometrics & Finance Education Engineering Public Health

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Penerapan Teknologi Surimi dari Tetelan Ikan Tuna dan Pengolahan Produk Kaki Naga Dwight Soukotta; Theodora EAA Matrutty; Beni Setha; Alfonsina Marthina Tapotubun; Jusuf Leiwakabessy; Johanna Tupan
MITRA: Jurnal Pemberdayaan Masyarakat Vol. 7 No. 1 (2023): Mitra: Jurnal Pemberdayaan Masyarakat
Publisher : Institute for Research and Community Services

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/mitra.v7i1.3328

Abstract

The tuna loin industry leaves quite a lot of waste in the form of thin meat tether mixed with fiber. Tuna tethers have good development prospects because they can become the main ingredient for making surimi. Surimi is an intermediate product that has a high functional protein content and has been recognized worldwide. Surimi is the raw material for fish jelly products such as dragon leg, meatballs, nuggets, and others. Based on observations, it turns out that tuna tethers have not been optimally utilized to improve the welfare of the community. The North Ambon Island Klasis area community does not know the processing of surimi and its development opportunities into various competitive products. The purpose of this activity is to utilize tuna tether through the application of surimi technology and dragon foot product processing to household wives from several villages on North Ambon Island. The target audience for this activity was 30 household wives from 17 villages in the North Ambon Island Klasis area. The activities were carried out from March to April 2022, consisting of three (3) stages , preparation, implementation of counseling, and training. The results of the paired sample T test show that there is a significant difference in the knowledge of the target audience before and after the implementation of counseling and training on the application of surimi technology and processing surimi into dragon foot products. The average post-test score of 30 participants increased by 59.39% after participating in counseling and training activities on the application of surimi technology and processing surimi into dragon foot products. At the end of the activity, the participants practiced surimi and dragon foot processing trials, showing 90% of the participants were quite skilled in processing the two products.
Effects of Carrageenan Concentration in Culture Medium on the Growth, Filament Morphology, and Biochemical Composition of Spirulina platensis as a Fish Feed Ingredient Dwight Soukotta; Beni Setha; Cindy Regina M Loppies
Habitat: Jurnal ilmiah ilmu Hewani dan Peternakan Vol. 3 No. 1 (2025): Februari : Habitat : Jurnal ilmiah ilmu Hewani dan Peternakan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/habitat.v3i1.508

Abstract

Spirulina platensis has considerable potential as a functional fish-feed ingredient because of its high protein content, natural pigments, and bioactive compounds. However, cultivation conditions must be optimized to produce biomass with stable growth, filament integrity, and biochemical quality. This study evaluated the effects of carrageenan concentration in culture media on the physical characteristics, biomass growth, filament morphology, and biochemical composition of S. platensis. A laboratory experiment was conducted using a Completely Randomized Design comprising four carrageenan treatments: 0.00%, 0.05%, 0.10%, and 0.15%, with three independent replications. The measured parameters included pH, temperature, viscosity, biomass density, dry biomass, specific growth rate, biomass productivity, filament length, fragmentation percentage, crude protein, phycocyanin, chlorophyll, and moisture content. Data were analyzed using one-way analysis of variance followed by Duncan’s multiple range test. Carrageenan significantly increased medium viscosity without substantially changing pH or temperature. The 0.10% treatment produced the highest biomass density, dry biomass, specific growth rate, and biomass productivity. It also generated the longest filaments, lowest fragmentation percentage, and highest protein, phycocyanin, and chlorophyll contents. Conversely, the 0.15% treatment reduced growth, filament integrity, and biochemical quality, indicating that excessive viscosity may restrict light penetration, aeration, mixing, and nutrient transfer. The findings demonstrate that 0.10% carrageenan provides the most favorable cultivation conditions among the tested concentrations. This concentration can be considered for producing high-quality S. platensis biomass, although direct feeding trials are required to confirm its digestibility, biological effectiveness, and economic feasibility in aquaculture.
Interactive Effects of Water Temperature and Stocking Density on the Growth and Survival of Asian Seabass (Lates calcarifer) Larvae in a Recirculating Aquaculture System Beni Setha; Dwight Soukotta; Dessyre Marlen Nendissa
Habitat: Jurnal ilmiah ilmu Hewani dan Peternakan Vol. 3 No. 2 (2025): Agustus : Habitat : Jurnal ilmiah ilmu Hewani dan Peternakan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/habitat.v3i2.510

Abstract

The production of high-quality Asian seabass (Lates calcarifer) seed is strongly influenced by environmental management during the larval stage. Water temperature regulates metabolic activity, feeding, digestion, and development, whereas stocking density affects competition, stress, water quality, and survival. This study evaluated the individual and interactive effects of water temperature and stocking density on the growth and survival of Asian seabass larvae cultured in a recirculating aquaculture system. A completely randomized factorial design consisting of three temperature levels and three stocking densities was applied. The nine treatment combinations were independently replicated three times using separate recirculating culture units. Specific growth rate, weight gain, length gain, survival, mortality, size variation, and water-quality parameters were measured during the culture period. Data were analyzed using two-way analysis of variance followed by multiple-comparison testing. Water temperature and stocking density significantly affected larval growth and survival, and a significant interaction occurred between the two factors. The highest individual growth and survival were obtained at 30 °C and 10 larvae/L. However, the combination of 30 °C and 20 larvae/L provided the most balanced operational performance by maintaining high growth and survival while improving tank utilization. Larvae maintained at 32 °C and 30 larvae/L exhibited the lowest growth and survival, the highest mortality and size variation, reduced dissolved oxygen, and greater nitrogenous-waste accumulation. These findings demonstrate that temperature and stocking density should be managed jointly according to RAS treatment capacity. Maintaining an appropriate temperature–density combination can improve larval health, seed-production efficiency, fish welfare, and the environmental sustainability of Asian seabass hatcheries
Co-Authors Cindy Regina M Loppies Dessyre Marlen Nendissa Dwight Soukotta Johanna Tupan Jusuf Leiwakabessy Tapotubun, Alfonsina M. Theodora EAA Matrutty