Judul: Kajian Usaha Pembesaran dan Pemasaran Ikan Lele serta Strategi Pengembanganya di UD Sumber Rezeki Parung, Jawa Barat
Abstrak: Consumption and demand for catfish has increased. These conditions open a big opportunities for catfish farming. To be successful in catfish farming, it requires technology and the enlargement of catfish market domination. The purpose of this study was to determine the magnification and technology marketing at UD Sumber Rezeki and get a new breakthrough in marketing efforts and the enlargement of catfish, determine the feasibility and efficiency of marketing efforts and the enlargement of catfish, find the prospect of catfish processed products, know the strengths, weaknesses, opportunities and threats in the enlargement and marketing of catfish and determine the strategy of business development and marketing of catfish enlargement on UD Sumber Rezeki. Technology production processes carried out by following the catfish aquaculture activities at UD Sumber Rezeki Parung, West Java, and then analyzed the feasibility of their business. The analisis through qualitative analysis, quantitative analysis of IFE (Internal Factor Evaluation) and External Factor Evaluation (EFE) Matrix IE and SWOT (Strengths, Weaknesses, Opportunities and Threats). Catfish farming in the UD Sumber Rezeki Parung, West Java feasible to be implemented with the value of Benefit / Cost (B / C) ratio> 1,26. Break Event Point (BEP) catfish production. Rp. 9631.76 per kg, NPV 14% on the value of Rp. 38,140,956, 17% IRR and PBP 3 years 9 months. Efficiency for catfish enlargement in UD Sumber Rezeki determined by the use of water by gravity, the use of probiotics to save time, use sinking feed and floating feed. Based on the IFE (2.83) and EFE (2.81), then the position at UD Sumber Rezeki phase of growth and stability and are in quadrant 5. Based on the analysis matrix and SWOT matrix IE, then the strategy for developing UD Sumber Rezeki, Parung, West Java are (1) market penetration by selling directly to end customer, (2) diversification of catfish products and (3) improve the competence of human resources. The conclusion of this study is the process of enlargement of catfish conducted by UD Sumber Rezeki good enough, the feasibility and efficient good enough but distribution channel catfish is too long. The most appropriate strategy for development is to penetrate and market development and product diversification. The advice is to develop more diversified products and observations in the distribution channel catfish.
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Judul: Strategic Business Development Farming Catfish (Clarias sp.) On Dry Land In Gunungkidul Regency, DI Yogjakarta Province
Abstrak: The purpose of this study was (1). analyze the feasibility of catfish farming in dry land in the district of Gunungkidul Yogyakarta Province, (2). analyze the potential of catfish farming in ponds tarp on dry land., (3) develop alternative business development in the district of Gunungkidul Yogyakarta Province. The method used in this thesis is descriptive method that focuses on technical aspects and business development aspects of aquaculture, as well as a SWOT analysis. Based on financial analysis, the pond area 12-16 m2 level cultivators consumption catfish prices average per kilogram Rp. 1,0394,- production resulting catfish consumption 3,642.95 (equivalent to 453.88 kg of catfish), earnings per cultivation cycle Rp. 1,557,874, - or Rp. 4,673,620,- within one year of cultivation period, net profit per year of Rp. 832,668,- or an average of Rp. 277,556,- per cycle of cultivation, production volume BEP at 344.54 kgs, or BEP at a price of Rp. 7,890,-/kg, Gross Value B/C Ratio of 1.22 based on the criteria and payback period (PBP) obtained the results 3.81; the pond area 20-25 m2 catfish prices average consumption per kilogram farmer level Rp. 10,673,- the resulting 7,180 production catfish consumption (equivalent to 868 kg of catfish), earnings per cultivation cycle Rp. 3,065,114,- or Rp. 9,195,341,- within one year of cultivation period, net profit per year of Rp. 2,248,907,- or an average of Rp749,635,- per cycle of cultivation, production volume BEP at 571.13 pounds, or BEP obtained a price of Rp 7,020,- / kg, Gross Value B/C Ratio of 1.32 and based on the payback period criteria (PBP) obtained results of 2.97 years; the pond area 30-45 m2, level cultivators consumption catfish prices average per kilogram Rp. 1,0291,- production generated 1,0661.01 catfish consumption (equivalent to 1,242.06 kg catfish), earnings per cultivation cycle Rp. 4,268,777, - or Rp.12,806,333,- within one year of cultivation period, net profit per year of Rp. 3,245,323,- or an average of Rp 1,081,774,- per cycle of cultivation, production volume BEP at 807.99 kgs, or BEP obtained at the price of Rp. 6,695,- / kg, Gross Value B/C Ratio 1.34, and based on the criteria of payback period (PBP) obtained results of 2.64 years. To maximize revenue catfish farmers, a strategy that has been formulated on the SWOT analysis needs to be implemented on the pattern of farmers by increasing the amount of effort and extensive farming ponds and develop, implement ways of maintaining and good cultivating, as well as expand the reach of markets ranging from individual consumers, traditional market and a restaurant to the modern retail market to increase profits catfish farmers in dry land in the district of Gunungkidul.
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Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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