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INDONESIA
Indonesian Journal of Applied Science and Technology
Published by Indonesian Publication Center
ISSN : 27213358     EISSN : 27213331     DOI : -
Core Subject : Health, Science, Education, Agriculture, Engineering,
Agriculture, Biological Sciences & Forestry Computer Science & IT Engineering Public Health Other
Indonesian Journal of Applied Science and Technology (IJAST) adalah wadah publikasi ilmiah yang berfokus pada penyebarluasan hasil penelitian dan pemikiran inovatif di bidang sains terapan, teknologi, dan informasi. Jurnal ini ditujukan bagi mahasiswa, guru, dosen, praktisi, maupun peneliti untuk mendiseminasikan temuan mereka kepada masyarakat ilmiah secara luas. Focus and Scope IJAST menerima naskah dalam bentuk artikel hasil penelitian (original research) maupun artikel tinjauan pustaka (review article) yang mencakup, namun tidak terbatas pada, bidang-bidang berikut: Pendidikan & Sains Dasar: Pendidikan IPA, Matematika, dan Ilmu Pengetahuan Alam (IPA). Teknologi & Rekayasa: Teknik (Sipil, Elektro, Mesin, dll.) dan Teknologi Pangan. Teknologi Informasi: Ilmu Komputer, Sistem Informasi, dan Teknologi Informasi Terapan. Ilmu Hayati & Lingkungan: Pertanian, Peternakan, Perikanan, dan Kelautan. Kesehatan: Keperawatan, Kebidanan, Kesehatan Masyarakat, dan bidang kesehatan terkait lainnya. Peer Review Process Setiap artikel yang dikirimkan ke IJAST akan melalui proses Peer Review. Tim reviewer akan mengevaluasi naskah berdasarkan kualitas metodologi, orisinalitas temuan, dan kontribusinya terhadap perkembangan ilmu pengetahuan. Penulis diwajibkan melakukan registrasi dan mengirimkan artikel secara mandiri melalui sistem OJS jurnal. Open Access Policy IJAST berkomitmen pada prinsip bahwa akses terbuka terhadap hasil penelitian akan mendukung pertukaran pengetahuan global yang lebih besar. Seluruh artikel yang diterima akan dipublikasikan secara Open Access dan tersedia secara bebas untuk dibaca atau diunduh oleh publik di bawah lisensi: Creative Commons Attribution-ShareAlike 4.0 International License (CC BY-SA 4.0). Publication Frequency IJAST mulai terbit sejak tahun 2020. Sejak tahun 2022, jurnal ini berkomitmen untuk terbit dua kali dalam setahun (dua edisi per volume) pada periode: Edisi Januari-Juni dan Edisi Juli-Desember.
Arjuna Subject : Umum - Umum
Articles 127 Documents
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Pengaruh Jenis Plankton yang Berbeda Terhadap Kelulushidupan dan Laju Pertumbuhan Larva Teripang Pasir (Holothuria Scabra) pada Fase Planktonik Yunita Safitri; Dwi Mardhia; Dedi Syafikri; Neri Kautsari
Indonesian Journal of Applied Science and Technology Vol. 1 No. 1 (2020): Edisi Maret 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i1.43

Abstract

Sea cucumbers are phytoplankton and zooplankton (natural food) eating organisms. Availability or concentration of feed plays an important role in the growth and survival of larvae. Three types of plankton used in this study are diatom species, namely Nanocloropsys sp, Isochrysis sp and pavlopa sp which have high nutritional content and are commonly cultivated. This research was conducted to find the right and optimal type of feed in increasing the production of survival rate and growth rate of larvae of sea cucumbers (Holothuria scabra) so that the cultivation of sea cucumbers can succeed. This research was conducted in the village of Teluk Santong, Plampang District, Sumbawa Regency. The experimental design used in this study was a Completely Randomized Design (CRD) with 3 replications and 4 treatments placed at random. The results showed that the highest growth rate and survival rate of sea cucumber larvae was obtained from the treatment of Isochrysis sp. The value of the growth rate of sea cucumber larvae was 62.7 µm and the survival value was 93.33%, while the lowest growth and survival rate was in the control treatment with a growth rate value of 49.4 µm and a survival rate of 9.33%,
Aplikasi Jenis Umbi dan Konsentrasi Gula Pasir Terhadap Tingkat Keberhasilan Bibit Jamur Tiram Kholifatul Laila; Wening Kusuma Wardani
Indonesian Journal of Applied Science and Technology Vol. 1 No. 1 (2020): Edisi Maret 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i1.44

Abstract

This study aims to determine effect of various tuber media, sugar concentration, and combination of both factors on success of white oyster mushroom F0 seeds, carried in Mapin Kebak Village Sumbawa Regency, from May-June 2018. Using quantitative method research, factorial Completely Randomized Design (CRD) with two factors. The first factor was various tuber media (M) with 4 experimental levels, namely M0(potato), M1(white sweet potato), M2(cassava), and M3(Amorphopalus). The second factor was sugar consentration (G) with 3 experimental levels, namely G0(10 gr/l), G1(20 gr/l), G2(25 gr/l), there are 12 treatments with 7 replications and 84 test units. The conclusions are: a)the thickest mycelium on media surface on third week is M0(potato, the longest length of mycelium on first week is M1(white sweet potato) and on third week is M0 (potato), the fastest growth rate of mycelium on first week is M1(white sweet potato), on second and third week is M0(potato); b)the thickest mycelium on media surface on first week and the length of the mycelium displayed on second week is G1(concentration of sugar 20g/l); c)the longest mycelium is M0G1(potatoes+granulated sugar 20g/l) on third week and the lowest level of contamination of combination is M1G0(white sweet potato+granulated sugar 10g/l).
Identifikasi Jenis Fioplankton di Tambak Udang Vannamei (Litopenaeus Vannamei) LSO AV3 Kecamatan Utan, Kabupaten Sumbawa Yadi Putra Mansyah; Dwi Mardhia; Yudi Ahdiansyah
Indonesian Journal of Applied Science and Technology Vol. 1 No. 1 (2020): Edisi Maret 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i1.45

Abstract

Phytoplankton play a very important role in a pond waters. Its ecological function as a primary producer and beginning of a chain in the food chain. The presence of phytoplankton in the waters can also describe the characteristics of a waters. The purpose of this study was to analyze the abundance, diversity, and uniformity of phytoplankton domination in the LSO AV3 pond, Utan District, Sumbawa Regency. This research has been carried out in Motong Village, Utan Subdistrict, Sumbawa Regency for 3 months from (January-March 2019) sampling using plankton net identification of phytoplankton species conducted at the AV3 LSO laboratory using a microscope then counted using a hand counter. In the research location, 4 classes were found, namely cyanophita, chloropyta, diatom and dinoflagellate. The highest abundance analysis of phytoplankton was in the chloropyta class with 22,720,000 (cell / ml) abundance, and the lowest was dinoflagellate with the lowest abundance of 5,140,000 cell / ml. , Diversity is with a value of 2.81 Uniformity that is with the amount of 0.80 and dominance is by the amount of 0.10.
Analisis Kelimpahan Kepiting Bakau (Scylla sp.) di Kawasan Hutan Mangrove Kecamatan Alas Barat Kabupaten Sumbawa Muhammad Zulfiqri; Dwi Mardhia; Dedi Syafikri; Syamsul Bachri
Indonesian Journal of Applied Science and Technology Vol. 1 No. 1 (2020): Edisi Maret 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i1.46

Abstract

Coastal District of Alas Barat has mangrove forest resources that have been degraded to environmental pressures due to human activities that is the conversion of land into pond areas. Mangrove ecosystems is an important role for marine and coastal ecology, which is the habitat of mangrove crabs (Scylla sp). Mangrove crab is a high commercial value fishery commodity. This study aims to determine the abundance of mangrove crabs (Scylla sp) in the mangrove forest area of ??Alas Barat District. The method used in this research is descriptive method with survey techniques. The research area is divided into 3 stations. The mangrove crab found was a type of Scylla serrata and Scylla paramamosain. The highest abundance of mangrove crabs was found at Station 1 (Gontar Baru) at 54.55%, followed by Station 2 (Karang Padak) at 23.23% and the lowest at Station 3 (Labuh Mapin) at 22.22%. The highest abundance at Station 1 type Scylla serrata is 11.66 ind / 100m² and the lowest at station 3 is 1.66 ind / 100m² while for Scylla paramamosain type, the highest abundance is at station 1 at 6.33 ind / 100m² and the lowest at station 2 as much as 5 ind / 100m².
Pengaruh Suplementasi Cacing Tanah (Lumbricus rubellus) pada Pakan terhadap Produktivitas dan Kualitas Telur Itik Sukarne Sukarne; Asnawi Asnawi; Anwar Rosyidi
Indonesian Journal of Applied Science and Technology Vol. 1 No. 1 (2020): Edisi Maret 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i1.47

Abstract

The high needs of community for poultry products, especially duck eggs must be balanced with the availability of quality feed. Good feed will be positively correlated with increased productivity and product quality. This study aims to evaluate the effect of earthworm supplementation to duck feed on increasing production and quality of duck eggs. The research material used was ducks aged 6 months as many as 60 heads which were divided into 2 treatments and 5 replications, each replication containing 6 female local ducks. Feed treatment was divided into 2, basal feed (rice bran 70% + corn 30%) and treatment feed (basal feed + 20% fresh earthworms). The results of this study showed a significant difference in egg production (12 ± 1.58 eggs and 20 ± 3.87 eggs) (P> 0.05) but not significantly different in egg weight (61.9 ± 6.58 and 60.4 ± 6.06), egg length and egg width (60.06 ± 2.05 and 53.81 ± 9.64). The results of experiments on egg resistance against several pathogenic bacteria showed that there was an increase in inhibitory power against Salmonella typhy, Escherichia coli, Bacillus cereus and Staphylococcus aureus on egg white (albumen) of duck eggs which added 20% of worms in the feed.
Perancangan Mesin Pemipil Jagung untuk Industri Rumah Tangga Nanang Tawaf
Indonesian Journal of Applied Science and Technology Vol. 1 No. 1 (2020): Edisi Maret 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i1.48

Abstract

Peningkatan produksi jagung di Sumbawa belum diikuti dengan penanganan pasca panen yang baik dan ketersediaan mesin pemipil bagi petani kurang mampu atau hasil panen yang minim, belum dapat menjamin ketersediaan jagung secara kuantitas, kualitas, maupun keberlanjutan teknologi olahan bagi industri rumah tangga. Hal ini diakibatkan oleh kurangnya mesin pemipil jagung untuk skala industri rumah tangga, petani jagung membawa hasil jagungnya ke pabrik pemipil dengan biaya yang cukup besar. Sehingga mengakibatkan kerugian karena hasil yang diperoleh lebih rendah dibandingkan biaya sewa mesin yang tinggi. Tujuan penelitian ini adalah mendapatkan produk mesin pemipil biji jagung skala industri rumah tangga. Metode perancangan mesin pemipil jagung yaitu proses desain dan melakukan identifikasi pasar, proses perhitungan elemen-elemen mesin, meliputi memilih daya mesin, poros, pulley, sabuk, bantalan. Hasilnya yaitu pada proses pembuatan mesin pemipil jagung sesuai dengan perhitungan, dan dilakukan pengujian alat hasil rancangan. Didapatkan bahwa dengan daya mesin 2,8 KW, bahan poros S50C, diameter poros 149 mm, jarak sumbu poros 270 mm, diameter dalam pulley untuk pulley penggerak 101 mm dan pulley yang digerakkan 202 mm, diameter luar pulley untuk pulley penggerak(dk) 110 mm dan untuk pulley digerakkan (Dk) 211 mm, lebar pulley 20 mm. Sabuk yang digunakan tipe A-560, panjang sabuk 733,02 mm. Bantalan yang digunakan deep groove ball bearing, nomor bantalan 6203. Semakin lama waktu produksi maka semakin meningkat jumlah biji jagung hasil produksi yaitu : lama produksi 1 menit menghasilkan rata-rata hasil produksi 2,9 kg, kemudian lama produksi 3 menit menghasilkan rata-rata hasil produksi 7,2 kg dan lama produksi 5 menit menghasilkan 20,2 kg.
Karakteristik Habitat Peneluran Penyu di Calon Kawasan Konservasi Perairan Taman Pesisir Lunyuk dan Tatar Sepang Lalu Ilham Syaputra; Dwi Mardhia; Dedi Syafikri
Indonesian Journal of Applied Science and Technology Vol. 1 No. 2 (2020): Edisi Juni 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i2.58

Abstract

The sandy beach where turtles lay their eggs is a natural incubator and has a suitable environment for the development of turtle embryos. Microclimate suitable for incubation of turtle eggs arises from interactions between physical characters, beach compilers, the local environment and eggs in the nest. One of the locations where sea turtles land and lay eggs in West Nusa Tenggara Province is on the beach of Lunyuk, Sumbawa Regency. Receiving sea turtles is a protected endangered species, it is necessary to carry out conservation activities to protect and save sea turtles. To support efforts to support, it is necessary to support locations where turtles lay their eggs. Like discussing research on landing sites and turtle nesting sites. The purpose of this study was to analyze the level of suitability of habitat characteristics for turtle nesting in the Lunyuk beach area. The research method uses the survey method. Survey activities include field observations and collecting primary data. Data analysis was performed using the weighting and scoring method. Based on observations it can be seen, the slope of the beach which is the location of spawning is 6.54 - 11.1%, substrate temperature 27 ° C - 32 ° C, humidity substrate 25% - 40%. While the percentage of vegetation is 40% - 57.1%. From the station visit, stations 1 and 2 are quite suitable, while stations 3, 4 and 5 are categorized according to the location of turtle nesting.
Penanggulangan Sedimentasi Pada Bendungan Plara Kabupaten Sumbawa Didin Najimuddin; Israjunna Israjunna; Ady Purnama
Indonesian Journal of Applied Science and Technology Vol. 1 No. 2 (2020): Edisi Juni 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i2.71

Abstract

Problems with the Plara Dam include the amount of sedimentation so that the water flow retained in the dam is not optimal. One effort to overcome sedimentation is to normalize sedimentation. The availability and need of water do not always meet the needs of life, both for humans, animals and plants. This happens because there is no balance between availability and water demand. Erosion and sedimentation are a series of processes related to the process of weathering, releasing, transporting and settling soil/crust material. With erosion in the watershed and the amount of sedimentation observed in the river flow at the bottom of the catchment is closely related to the hydrological system of the watershed. Rain as input in the hydrological system after experiencing the process will produce output in the form of flowrate and sediment load. The purpose of this study was to determine the volume of sedimentation in the Plara Dam. The method used in this research is to take primary and secondary data. The results of this study are the smallest rainfall intensity occurred in 2011 amounted to 1051.5 mm/sec and the highest occurred in 2016 amounted to 1734.7 mm/sec. Sedimentation volume occurred in the P19 - P20 area of 12129.32 m3 with total sedimentation of the P1-P20 area of 338588.93 m3.
Analisa Dampak Aliran Sungai Terhadap Banjir di Kawasan Pemukiman Brang Bara Kabupaten Sumbawa Israjunna Israjunna; Didin Najimuddin; Ady Purnama; Tri Satriawansyah; Zulkarnaen Zulkarnaen
Indonesian Journal of Applied Science and Technology Vol. 1 No. 2 (2020): Edisi Juni 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i2.73

Abstract

Flooding is a problem which until now still needs special handling from the government and the community, the maximum average rainfall in Sumbawa sub-district in 2011 was higher than flood conditions while in 2017 the conditions were lower. Hydrological analysis method obtained value of rainfall intensity for a period of 10 years with a duration of five minutes obtained a figure of 219.872 mm and the results of the design flood calculation with a 25-year return period obtained of 865,925 m3 / second. embankment planning for Mitigation efforts in reducing flood problems on the banks of the Brang Bara river can be done re-planning the flood embankment by raising the embankment, making revetment on the cliffs on the left side of the river so that it is not easy to landslides and river normalization. The results of the study prove that the cause of the flooding is not only from large water discharges but also the increase in the number of residents which causes an increase in the volume of waste dumped into the river, the increase in sedimentation obtained causes the river's capacity to decrease.
Penerapan Protokol Kesehatan dan Dampak Covid-19 Terhadap Harga Komoditas Perikanan dan Aktivitas Penangkapan Dwi Mardhia; Neri Kautsari; Lalu Ilham Syaputra; Wahyu Ramdhani; Chandra Okta Rasiardhi
Indonesian Journal of Applied Science and Technology Vol. 1 No. 2 (2020): Edisi Juni 2020
Publisher : Indonesian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.67434/ijast.v1i2.112

Abstract

The COVID-19 pandemic is a problem faced by almost all countries in the world including Indonesia which has implications for the fisheries sector. Fisheries sector players including vulnerable groups affected by COVID-19. This study aim is to analyze the application of health regulation that contain understanding and application of health regulations on fisheries and the impact of COVID-19 on commodity prices and fishing activities. The method used in this study is an online survey through a questionnaire using Google forms and in-depth interviews through the telephone network involving 45 respondents of fishermen. The survey results show that 93% of fishermen knew enough about the COVID-19 pandemic, 84% were quite worried, 7% were very worried and 9% had no effect. Most fishermen have implemented health protocol efforts including activities to wear masks, avoid shaking hands and washing hands with soap. Pandemic has an impact on the decline in fishery commodity prices by 10%. The impact of the pandemic on fishing activities is the delays in the delivery of commodity products, the decrease in the number of fishing, the decrease in the number of catches and demand for catches and the decrease in fishermen's income.

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