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Peranan suplementasi multi asam amino terhadap peningkatan sintasan dan ketahanan stress larva rajungan (Portunus pelagicus)
Full text linkRendahnya tingkat ketahanan stres dan kelangsungan hidup (survival rate) larva rajungan (Portunus pelagicus), khususnya pada fase zoea hingga megalopa, menjadi kendala utama dalam pengembangan teknologi pembenihan. Penelitian ini bertujuan untuk mengevaluasi pengaruh pemberian asam amino dalam media pemeliharaan terhadap ketahanan stres dan sintasan larva, serta menentukan dosis optimal. Penelitian dilaksanakan di Balai Perikanan Budidaya Air Payau (BPBAP) Takalar, menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dosis asam amino (0, 150, 200, 250 ppm) dan tiga ulangan. Larva zoea-1 dipelihara dalam 24 baskom plastik hitam berkapasitas 40 L, diisi air bersalinitas 32 ppt. Pakan berupa rotifer dan Artemia salina. Hasil ANOVA menunjukkan bahwa pemberian asam amino berpengaruh nyata (p<0,05) terhadap ketahanan stres dan tingkat sintasan. Dosis 250 ppm memberikan hasil terbaik dengan CSI terendah (99) dan sintasan tertinggi (30,45%), sementara dosis 0 ppm menunjukkan hasil terendah (CSI 130; sintasan 11,67%). Suplementasi asam amino dosis 250 ppm berpotensi meningkatkan keberhasilan pembenihan rajungan melalui peningkatan ketahanan stres dan sintasan larv
THE IMPACT OF NON-TARIFF MEASURES ON THE DEMAND FOR INDONESIAN SEAWEED IN THE INTERNATIONAL MARKET
No full textThis study examines the determinants of Indonesia’s seaweed exports to several destination countries, including Chile, China, Denmark, Japan, Spain, and the United States, using panel data regression analysis. The results reveal that export volume is influenced by various factors, such as import prices, population size, per capita income of the importing countries, and non-tariff measures, specifically Sanitary and Phytosanitary (SPS) standards and Technical Barriers to Trade (TBT). Import prices, GDP per capita, and the implementation of SPS and TBT measures are found to negatively affect Indonesia’s seaweed export volume. In contrast, population growth in the importing countries has a positive and significant impact. Key challenges hindering Indonesia’s seaweed exports include stringent SPS requirements, food safety regulations, and product rejections due to contamination and non-compliance with import standards. To enhance the competitiveness of Indonesian seaweed in the global market, it is essential to improve product quality, ensure compliance with international standards, foster technological innovation, and provide targeted support to exporters.
Reviewing Indonesian Wooden Furniture: Does Indonesia Have Comparative and Competitive Advantages in the United States Market?
Full text linkThe Indonesian wood furniture industry is a significant contributor to the non-oil and gas sector of the economy. Manufacturers are responsible for meeting not only domestic demands but also the needs of the international market. Nevertheless, Indonesia's status as a global exporter remains comparatively inferior to that of China and Vietnam. This study aimed to assess the comparative and competitive advantages of Indonesian wooden furniture globally. Employing a time series analysis spanning 21 years (2001-2022), the research utilized the Revealed Comparative Advantage (RCA) method and Porter’s Diamond Model to assess these advantages. The results of the study indicate that RCA analysis consistenly showed values greater than one. However, the study also identified fluctuations in RCA during the period of 2007-2011. Furthermore, the application of Porter’s Diamond Model revealed that Indonesia’s abundant natural resources, skilled labor force, and supportive industrial ecosystem are key factors contributing to its competitive position. Nevertheless, the analysis highlighted the need for continued investment in capital, particularly in terms of technology and infrastructure, to sustain and echance this competitive advantage
The Influence of Farm Road Construction on Agriculture in Banjarnegara Regency
Full text linkFarm roads are essential infrastructure that support agricultural business activities by improving access and transportation efficiency. This research aims to assess the impact of farm roads on agricultural productivity and to explore the related challenges and opportunities in Banjarnegara Regency. The study employs both primary and secondary data, with primary data collected through survey methods. Respondents were rice farmers from eight sub-districts in Banjarnegara Regency, providing diverse insights into local farming conditions. The data were analyzed using the Wilcoxon test. The findings reveal a significant difference in farmer productivity prior to and following the construction of Farm Roads. The majority of respondents (60.34 percent) experienced an increase in productivity, indicating the presence of farm roads in Banjarnegara Regency has a beneficial effect on the local agricultural community. However, 13.79 percent of respondents reported a decline in productivity, while 25.87 percent had no change in productivity. The challenges and potential related to Farm Roads in the surveyed areas are largely representative of those in other areas of Banjarnegara Regency. This issue warrants attention from relevant local government agencies, as adequate Farm Roads are essential for farmers. These roads are not only vital for accessing farmland but also for transporting agricultural inputs and harvests. Improved access and transportation can significantly enhance agricultural productivity in Banjarnegara Regency.
Application of QFD in Service Quality Improvement: The Case of Pasar Malam Batubulan Services
Full text linkDewi Sri Market, located at Batubulan Terminal, Sukawati District, Gianyar, Bali, is one of the island’s tourist destinations, offering a unique shopping experience with diverse culinary choices, performances, clothing, and entertainment for children, commonly known as Pasar Malam Batubulan. This study aims to identify the attributes considered important by the public regarding Pasar Malam Batubulan, measure the levels of importance and satisfaction related to service quality, and formulate strategies to improve service quality. The analysis employs Quality Function Deployment (QFD), with variables derived from the five service quality dimensions: tangibles, reliability, responsiveness, assurance, and empathy. Based on the QFD analysis, the attribute with the highest importance value was the tangibles dimension, specifically toilet facilities (4.83), followed by vendor politeness (4.82), cleanliness and comfort of the market area (4.80), vendor friendliness (4.80), parking availability (4.79), and lighting quality (4.78). Other attributes that were rated highly included vendor product knowledge (4.68), service responsiveness (4.66), price-to-portion fairness (4.66), and market layout (4.64). However, satisfaction scores revealed a considerable gap, with salesperson friendliness receiving the highest score (4.05) and toilet facilities scoring the lowest (3.42), highlighting critical gaps in service quality. Based on respondent characteristics, the recommended strategies include introducing digital payment systems such as QRIS or digital wallets. Sustained capacity building for merchants, along with regular evaluations, is considered essential to measure the long-term impact of these initiatives and to assess their readiness for digital transformation. These findings underscore that enhancing basic facilities and adopting digital payment systems are strategic measures to improve customer satisfaction and align traditional markets with the evolving demands of the digital era
Isolation, Characterisation and Presumptive Identification of Lactic Acid Bacteria from Matoa (Pometia pinnata) Fruit
Full text linkEach fruit has a distinct nutritional composition physicochemical characteristics, creating specific ecological niches for microbial growth. To the best of our knowledge, this study is the first to report the isolation and phenotypic characterisation of native LAB from matoa fruit, thereby providing baseline mircrobiological data for this underexplored fruit matrix. This research aims to isolate and characterise native LAB from matoa. The Matoa sample was inoculated into de Man-Rogosa-Sharpe (MRS) Broth and isolated using the streak plate method. The isolate was then characterised based on its morphological, physiological, and biochemical characteristics. Results shows that isolated LAB exhibit cream-coloured, circular colony morphology with clear edges, convex elevation, an opaque internal structure, and varying colony sizes. Cellular characteristics of the isolate included rod-shaped morphology, Gram-positive staining, non-catalase activity, and non-motility. The isolate survived at pH 5 and 6, 6.5% salt content, and at 25°C, 37°C, and 45°C. the The isolate also fermented glucose, sucrose, maltose, fructose, and galactose, and also did not produce H2S or indole. The LAB isolate was identified as belonging to the genus Lactobacillus and is presumably identified to be Lactobacillus plantarum
Performance Comparison of Large-Core Optical Waveguides with Waste-Derived and Analytical-Grade Chitosan Core Materials
Full text linkThis study investigates and compares the optical performance of large-core polymer waveguides fabricated using shrimp-shell-derived chitosan (SSC) and analytical-grade chitosan (AGC) as core materials. Both materials were processed into a buried square-core waveguide configuration and evaluated through optical loss measurements, time-dependent loss (TiDL), temperature-dependent loss (TDL), and microstructural examination. The two chitosan types exhibited their lowest attenuation at a concentration of 0.04 g/mL, with AGC showing marginally lower optical loss, consistent with its higher purity and degree of deacetylation. AGC also demonstrated superior temporal and thermal stability, supported by SEM results indicating a smoother and more homogeneous core morphology. Nevertheless, SSC showed performance levels closely comparable to AGC, revealing that biowaste-derived chitosan can function effectively as a core material for large-core waveguides. This outcome underscores the potential of SSC as a sustainable, low-cost alternative, contributing to SDG 12 (Responsible Consumption and Production) through biowaste valorization, and SDG 9 (Industry, Innovation, and Infrastructure) by promoting eco-friendly materials for future optical sensor platforms. The results affirm that SSC-based waveguides hold promise for applications including humidity, pH, chemical, and biochemical sensing
OPTIMIZATION OF PLAYGROUND FACILITIES FOR SOUTH OESAPA EARLY CHILDHOOD EDUCATION IN ORDER TO SUPPORT THE LEARNING PROCESS
No full text The purpose of this service activity is to optimize play facilities in order to support the learning process at PAUD Marturia Oesapa Selatan. Play facilities can help provide stimulation to help with physical and spiritual growth and development so that children have readiness to enter further education. The existence of good facilities and infrastructure can support the learning process to be more optimal which affects the quality of education. Data sources are obtained through observation, interview, and documentation methods. Interview informants include school principals, teachers of facilities and infrastructure, and subject teachers. The implementation method carried out by the implementation team in order to overcome partner problems is divided into 3 stages, namely the preparation stage, the implementation stage and the evaluation stage. The results of the activity show that the playground facilities have been well managed and stakeholders are satisfied.
OPTIMALISASI KUALITAS HIDUP SATWA MELALUI PENATAAN KANDANG, PENGAYAAN LINGKUNGAN, SERTA PEMANFAATAN EDUKASI DAN TEKNOLOGI
Full text linkPenelitian ini bertujuan untuk meningkatkan kualitas pengelolaan satwa di mini zoo melalui pendekatan animal welfare yang terintegrasi dengan pemanfaatan teknologi dan media edukasi. Program dirancang dalam tiga aspek utama, yaitu penataan kandang berbasis pengayaan lingkungan, penerapan sistem humidifier otomatis untuk menjaga kelembaban kandang ular, serta penyusunan infografis edukatif sebagai sarana penyampaian informasi kepada pengunjung. Metode yang digunakan meliputi observasi kondisi kandang, instalasi perangkat elektronik berbasis sensor kelembaban, dan perancangan media visual interaktif. Hasil menunjukkan bahwa penataan kandang dengan konsep animal welfare mampu meningkatkan kenyamanan dan aktivitas alami satwa, humidifier otomatis efektif menjaga kelembaban stabil pada kisaran optimal, dan infografis edukatif terbukti memudahkan penyampaian informasi konservasi kepada masyarakat. Dengan demikian, integrasi antara desain kandang, teknologi otomasi, dan media edukasi dapat mendukung peningkatan kesejahteraan satwa sekaligus memperkuat nilai edukasi pada fasilitas wisata edukatif. Kata kunci: animal welfare, kandang, humidifier otomatis, edukasi, infografi
EDUKASI EKOSISTEM MANGROVE BERKELANJUTAN DI SMAN 1 SUNGAI KAKAP: MEWUJUDKAN GENERASI PEDULI LINGKUNGAN KEMARITIMAN
Full text linkKegiatan sosialisasi ini sangat dibutuhkan, terutama bagi siswa SMAN 1 Sungai Kakap. Wilayah Sungai Kakap merupakan kawasan pesisir yang dikelilingi oleh ekosistem mangrove, menjadikannya rentan terhadap isu lingkungan seperti abrasi, pasang surut air laut, dan kerusakan habitat. Oleh karena itu PKM ini bertujuan untuk memberikan pengetahuan ke siswa SMAN 1 Sungai kakap akan pentingnya ekosistem mangrove. Diharapkan siswa SMAN 1 Sungai kakap peduli lingkungan mangrove. Metode yang digunakan ialah sesialisasi penyampain materi tentang ekosistem mangrove, melakukan pretest dan posttest untuk mengetahui seberapa tahunya siswa tersebut dengan eosistem mangrove. Pada saat dilakukannya pretest siswa dapat menjawab pertanyaan sebesar 84%-96%, dan saat materi telah disampaikan dan dilanjutkan dengan posttest siswa dapat menjawab sebesar 96%-100%. Dapat dilihat dari hasil pretest dan posttest terjadi perubahan positif yang dimana siswa tersebut setelah mendapatkan materi tentang ekosistem mangrove siswa sudah paham diharapkan siswa SMAN 1 Sunga Kakap dapat menerapkan dilingkungan mereka