Judul: Analisis Kelayakan Usaha Pengolahan Kopi pada Kelompok Usaha Bersama Robusta Akur di Kabupaten Temanggung
Abstrak: Coffee plants are one of leading commodities in Temanggung Regency that has not been widely used in off-farm subsystem. The government also pay attention to this industry. Form of government attention such as by forming Kelompok Usaha Bersama then provide investment aid as a stimulus to the Kelompok Usaha Bersama, to run the business. One of business group at Temanggung regency who get help are Kelompok Usaha Bersama Robusta Akur. Assistance given to Kelompok Usaha Bersama a building and a set of coffee processing machines. Feasibility study is required to analyze the coffee processing business investment assistance and machine building. The main aspect is the feasibility in non financial aspects and financial aspects. Consists of non financial aspects are market aspects, technical, management, sosial and environmental. The analysis was also performed on the changes around the business by using a switching value analysis. Switching value to use analyze the maximum change of costs and benefits. The analysis shows the feasibility of investing in the implementation of the coffee processing business. The analysis showed that, the NPV value obtained Rp43 507 123, IRR of 30.16 percent, Net B/C of 1.50; Gross B/C at 1.04, and Payback Period for 8.81 years. In the sensitivity analysis with the value obtained by switching approaches the maximum limit decrease in production by 12.74 percent and an increase in the cost of raw material costs by 29.45 percent. Results of the analysis showed that coffee processing business is sensitive to changes in the amount of production but is not sensitive to changes in raw material costs.
Keyword: switching value, feasibility study, coffee, Kelompok Usaha Bersama, assistance

Judul: Perancangan Awal dan Analisis Kelayakan Usaha Pengolahan Biji Kopi di Kabupaten Bener Meriah Provinsi Aceh, Preliminary design and feasibility analysis of processing coffee been plant in the District Bener Meriah, Aceh Province
Abstrak: Coffee is one of the commodities that are traded internationally, and can act as a source of foreign exchange. The District Bener Meriah is a coffee producing area in the Aceh Province. This area produces a high volume of coffee. However, with those coffee production the society is still economically disadvantaged because the coffee trading system is still controlled by the middlemen. The purpose of this research is to design a coffee processing plant which process coffe bean into rice coffee and analyze the financial feasibility of the business. The village of Pondok Gajah Sub-District of Bandar was selected as the location of the plant. The plant was designed to operate on production capacity of 1,000 kg/day with the main equipment includes a pulper machine, huller machine, and other supporting equipment. Based on the financial analysis carried out the necessary capital investment is Rp. 317,423,000.00 and the cost of production per year is Rp.2,902,831,710.00. The projected profits earned in the business of processing coffee beans is Rp. 64,341,333.00. Breakeven point is 64,825.95 kg. Payback period is about 9 months, while the ratio of investment income to be used to make a profit is 10.71. With NPV of Rp 1, 523,542,701.66, Net B/C 5.97, Gross B/C 1.10 and IRR 77.98%, which is greater than the applicable interest rate is (12.30% pa), it can be concluded that the business of processing coffee beans is financially feasible.
Keyword: technical feasibility, financial feasibility, coffee, business design

Judul: Pertahanan pada ikan terhadap infestasi ichthyophthirius multifiliis dengan tetrahymena pyriformis dan tetrahymena thermophila
Abstrak: Ichthyophthirius multifiliis adalah protozoa dari kelas Oligohymenophorea, ordo Hymenostomatida dan famili Ophryoglenidae. Protozoa ini sering menyerang ikan liar, ikan yang dibudidayakan dan ikan hias dalam akuarium. Bentuk dewasanya (trophozoit) tinggal dibawah kulit ikan yang menjadi inangnya. Mereka makan runtuhan sel dan mengelupaskan epithel. Angka mortalitas dapat mencapai 100% pada ikan yang dipelihara dalam akuarium. Penyakit ini telah dilaporkan dari semua benua. Banyak preparat kimia yang dapat dipakai untuk mengontrol parasit ini. Yang paling berhasil dari antara preparat-preparat kimia yang digunakan adalah malachite green dengan konsentrasi 0.25 ppm yang dibiarkan bekerja selama 1 jam. Namun ada masalah yang timbul dalam pengobatan, karena di dalam hampir setiap perairan terdapat parasit tersebut. Hal ini menyebabkan sewaktu-waktu atau secara kontinyu terjadi infestasi oleh parasit ini dalam populasi ikan. Untuk mengatasi masalah ini maka tindakan yang dianggap praktis dan efektif untuk mengontrol parasit ini adalah imunisasi. Disinipun timbul permasalahan pula. Karena Ichthyophthirius multifiliis adalah parasit obligat, maka sulit mengumpulkannya dalam jumlah yang cukup untuk pembu- atan vaksin. Maka dicari sumber lain untuk membuat vaksin terhadap parasit ini. Hasil penelitian menunjukan bahwa Tetrahymena pyriformis dan Tetrahymena thermophila dapat dipakai sebagai vaksin terhadap Ichthyophthirius multifiliis. Masalah yang timbul kemudian adalah bahwa perlindungan terhadap Ichthyophthirius multifiliis ternyata tergantung pada strain (galur) atau isolat dari kedua spesies Tetrahymena di atas yang digunakan. Sebagai pertahanan bentuk lain dari ikan selain imunitas dapat dikemukakan ketahanan non imunologis yang tergantung pada spesies ikan dan kenaikan kadar vitamin C didalam makanan.
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