Judul: Kelayakan Usaha Ternak Domba dengan Introduksi Pakan Silase Daun Singkong di Desa Petir, Kec. Dramaga, Kab. Bogor.
Abstrak: Petir village contributes to the production of sheep in West Java. The majority of sheep farmers in Petir village use grass as the feed which depends on weather condition. Cassava leaves silage can be an alternative feed with good quality. Introduction of cassava leaves silage can affect the feasibility of livestock business. This study aims to analyze the feasibility of sheep farming in terms of financial and nonfinancial aspects with and without introduction of cassava leaves silage. In actual condition the results of market and marketing aspects, technical aspect, social aspect, and environmental aspect showed that the business was feasible. Meanwhile, the technical aspect on the condition with introduction of cassava leaves silage feed was not feasible. Then, the results of financial aspect in actual condition showed that among three business scales (I: up to 5 sheep, II: 6 to 10 sheep, and III: larger than 10 sheep), Type III was the only feasible one. In addition, the result of switching value showed that the business was more responsive to the decrease of selling price than the increase in purchasing price of sheep. The result of financial analysis on the condition with introduction of cassava leaves silage feed was not feasible at every business scale
Keyword: switching value, non financial aspects, financial aspects

Judul: Analisis Kelayakan Usaha Penggemukan Domba Pada Mitra Tani Farm, Kecamatan Ciampea, Kabupaten Bogor
Abstrak: Sheep is the third biggest contributors of ruminant families for meat national product. MT Farm is one of a farm-based agribusiness companies that planning to expand its business to fulfill market requirements. The aim for this study to analyzing the feasibilty of sheep business expansion at MT Farm based on financial and non financial aspects. This study also analyzing sensitiveness levels of business expansion by Switching Value Analysis. Result of this study shows that business expansion by analyzing non financial aspects is feasible to run. Result of financial analysis is also feasible to run based on investment criteria, that NPV Rp 566,181,930, Net BC is 2.01, and IRR is 22.55 percent of Payback Period means investment costs will return in two years four months and one day. While Switching Value Analysis shows the ascend limit of sheep’s mortality is 2.107109305 percent, so ascending in prices of lamb is 3.1854194939394 percent. Switching Value Analysis shows that ascending of sheep’s price give more influences than ascending of sheep’s mortality.
Keyword: sheep, feasibilty analysis, farm, business expansion

Judul: Characterizations of low alloy steel sae 4422  plated with chromic acid (Cro3)
Abstrak: Characterizations of low alloy steel SAE 4422 plated with chromic acid (CrOrO3) was use Optical Microscopy (OM), Scanning Electron Microscopy (SEM), X-Ray Diffraction (XRD), RD),Energy Dispersive Analysis of X-Ray (EDAX), Hardness Test and Roughness Test. Microstructures analysis exhibits cracks and grain boundaries microcracks as a characteristics of chrome metal found at plating metal. Perlite and Ferrite as grains of steel found at base metal with grain boundaries around it. Phase analysis of plating metal appropriate to chrome metal with lattice constant (a) is 2.559 Å and phase analysis of base metal appropriate to iron ferrite with lattice constant (a) is 3.318 Å. Both plating and base metal have cubic system. Chemical analysis of plating metal at surface section exhibits that cracks area have highest value of carbon element compare with grains and grains boundaries area. While chemical analysis of base metal at cross section exhibits that perlite have highest value of carbon element compare with ferrite and grain boundaries. The hardness value of plating metal at surface section and cross section are 753 and 637 VHN. While, the hardness value of base metal and interface area at cross section are 205 and 373 VHN. The roughness value at measurement points of chrome surface for as received sample are 0.445 μm. Observation used Optical Microscopy and Scanning Electron Microscopy exhibits surface irregularities combine to form surface texture of plating metal at surface section.
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