Garuda - Garba Rujukan Digital

I. Diatin

Bogor Agricultural University, Department of Aquaculture

Author-ID : 253874

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology Physics

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Articles

1

Finansial Analysis of Wanayasa Tilapia Culture in Mekarsari Farmer Group Diatin, I.; Sobari, Moch. P.; Irianni, I.
Jurnal Akuakultur Indonesia Vol. 6 No. 1 (2007): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

This research aims to discover the general overview of the Nila Wanayasa's seeding business which conduct by Mekarsari's Conductors Group in Tanjungsari Village, to analyze the business' rent, to analyze the investment eligibility and to analyze the sensitivity of the price fluctuation of production factors, in this case is feed. The business eligibility and its sensitivity judged by investment criteria i.e. NPV, Net B/C, and IRR. The result shows the NPV is IDR 225,116,401.83, Net B/C is 19.38, and IRR is 707%. The sensitivity analysis which using the switching value methods shows that the business is eligible to be continued with increasing price of feed until 800.917%, because of the NPV is zero, Net B/C is 1, and IRR is equal to the rate. Keywords: financial analysis, NPV, Net B/C, IRR, Nila Wanayasa's Culture ABSTRAK Penelitian ini bertujuan untuk mengetahui kelayakan ekonomi usaha budidaya ikan nila Wanayasa yang dilakukan oleh kelompok tani Mekarsari, Desa Tanjungsari, Purwakarta. Kriteria kelayakan usaha dan faktor sensitivitas yang diamati meliputi NPV, B/C net, dan IRR. Hasil penelitian menunjukkan bahwa nilai NPV adalah sebesar Rp 225.116.401,83, B/C net sebesar 19,38, dan IRR 707%. Analisa sensitivitas menggunakan metode "switching value" menunjukkan bahwa usaha petani layak dilanjutkan sampai harga pakan meningkat 800,92%, karena nilai NPV adalah nol, B/C net 1, dan IRR sama dengan tingkat suku bunga yang berlaku. Kata kunci: analisis finansial, NPV, B/C, IRR, Nila Wanayasa

Optimation of Production Input in White Shrimp (Litopenaeus vannamei) Culture: A Case Study in UD. Jasa Hasil Diri at Desa Lamaran Tarung, Kecamatan Cantigi, Kabupaten Indramayu Diatin, I.; Arifianty, S.; Farmayanti, N.
Jurnal Akuakultur Indonesia Vol. 7 No. 1 (2008): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

UD Jasa Hasil Diri (UD JHD) is a company in Indramayu which culture the white shrimp. UD JHD started this culture in 2003, and now UD JHD's dam out area has reach 26 ha. Total production of white shrimp in 2006 was 125,854.5 kg. The production cost of white shrimp culture that must be spending by UD JHD reached IDR 2,842,427,294. This production cost was allocated to get all variable input such as: seed, food, calcium, fertilizer, vitamin, probiotic, medicine, labor, diesel fuel, and gasoline. The used of production input already in optimum condition. Based on the result of linear study for seed used was optimum at 7,830,667 tails, foods at 204,387.7 kg, calcium at 25,170.9 kg, fertilizer at 503.4 kg, vitamins at 75.5 kg, probiotic at 683.4 kg, medicines at 4,279.1 kg, harvests at 1,258.5 hours, diesel fuel at 104,459.2 liters, and gasoline at 1,200 liters. The cost of production input based on linear study was IDR 2,403,220,000. Thus, UD JHD could reduce this cost by IDR 439,207,294 to get 125,854.5 kg shrimps. Keywords: optimum, production input, cost, white shrimp ABSTRAK UD Jasa Hasil Diri (UD JHD) merupakan sebuah perusahan yang membudidayakan udang vaname di Indramayu. Perusahaan ini memulai usahanya sejak tahun 2003, dan saat ini memiliki tambak seluas 26 ha. Total produksi udang vaname pada tahun 2006 adalah 125.854,5 kg. Biaya yang harus dikelurkan oleh UD JHD untuk memproduksi budidaya udang vaname mencapai Rp. 2.842.427.294. Biaya produksi ini dialokasikan untuk memperoleh berbagai input produksi seperti benur, pakan, kalsium, pupuk, vitamin, probiotik, obat-obatan, tenaga kerja, solar dan bensin. Penggunaan input produksi telah mencapai kondisi optimum. Berdasarkan hasil uji linier, kondisi optimum untuk benih yang ditebar adalah 7.830.667 ekor, pakan sebanyak 204.387,7 kg, kalsium 25.170,9 kg, pupuk 503,4 kg, vitamin 75,5 kg, probiotik 683,4 kg, obat-obatan 4.279,1 kg, masa pemeliharaan 1.258,5 jam, solar 104.459,2 liter, and bensin 1.200 liter. Berdasarkan analisis linier, biaya input produksi adalah Rp. 2.403.220.000. Dengan demikian, UD JHD dapat menurunkan biaya menjadi Rp. 439,207,294 untuk memperoleh 125.854,5 kg udang vaname. Kata kunci: optimum, input produksi, biaya , udang vaname

Differences in Appearance of Saltwater, Freshwater and Imitation Pearls with Microscopic Electron Spectrum Kotta, R.; Effendi, I.; Diatin, I.; Budiardi, T.; Adam, M. A.
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9001

This study aims to identify the differences between saltwater, freshwater, and imitation pearls based on their morphology and topography. Samples were collected from the pearl trading center in Sekarbela, Mataram, Lombok, Nusa Tenggara Barat. The methods employed included physical analysis focusing on origin, formation process, shape, weight, color and light reflection, as well as price. Additionally, morphological and topographical scanning was conducted using Scanning Electron Microscopy (SEM)-EDS to obtain more detailed data. The research findings revealed significant differences among the three types of pearls, particularly in color reflection and luster. Saltwater pearls exhibited the strongest and most radiant color reflection compared to freshwater and imitation. Morphological examination showed pearl grains were irregular in shape and varied in size. Bright colors were predominantly associated with elements having high atomic numbers, whereas dark colors were linked to elements with low atomic numbers. The EDS analysis indicated distinct differences in the chemical composition of each pearl type. Calcium was found to dominate in saltwater pearls, carbon in freshwater pearls, and silicon in imitation. These findings provide deeper insights into the morphological characteristics and chemical compositions of each type of pearl, enhancing the identification of quality differences and the unique traits of each variety.

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