Judul: Potency of The Development of Buffalo in Bojong and Cibunar Village of Garut Regency.
Abstrak: In the development of livestock in Garut Regency, it is important to understand factors influencing its improvement including land use, feed availability, environment, animals, and social cultural of the local farmers. The aim of this study was to assess the potency of buffalo development in two villages of Garut namely Bojong and Cibunar. Each village has its own characteristics as follow Bojong is located at the altitude of 1100 m above sea lives with greater area of rice fields, and mechanization has been existed in the village; where as Cibunar is located at the altitude of 600 In above sea level, and buffalo are mostly used as draught animal for ploughing rice fields.
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Judul: Potency of Ruminant Forage in Karacak Village, Leuwiliang, Bogor.
Abstrak: The increasing of human population may cause the raising of food demand especially animal protein. Ruminants are potential livestock to be developed, because it could contribute mostly of meet supply. Therefore, it is required a priority zone to be developed as animal fanning area, in Indonesia. where the animal farm distribution is not spread evenly. The first step of animal zone is acquainted with each potential area that determined a number of animals which still can be developed in an area. This research was aimed to estimate potency forage by Nell and Rollinson method, and SWOT analysis to provide the advantage in fonn of information to plan the area and arrange development direction policy. Data were collected from two sources, they were (I) primary data from direct interview with the farmers, officials, and associate institution with structured questionair contribution, (2) secondary data from Villages Profile, Sub District Profile, Agricultural and Bogor Animal Farm Agency and associate institution supported this research. Where as the analysis and data were processed by using Nell and Rollinson method., botanical analysis, and SWOT analysis. The result of Nell and Rollinson method showed that Karacak village had 597,748 ton/year for forage potential, thus it still retained animal for 134 Animal Unit Area development strategy for animal farm in Karacak village was be set up on on the basic of SWOT analysis, such diversification in which had some treats, but internally still had strength. Key word : Forage, SWOT, Karacak village
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Judul: Elektrodeposisi Film Tipis Semikonduktor Cu2ZnSnS4 (CZTS) pada Substrat Kaca ITO
Abstrak: Semiconductor Cu2ZnSnS4 (CZTS) thin film that can be used as absorber layers on solar cell module was made via electrodeposition method. CZTS thin film was electrodeposited on the surface of a silicate glass coated with a thin layer of indium tin oxide (ITO). Deposition process was done using potentiostatic mode at room temperature with a potential of 1.05 V for 30, 45, and 60 minutes, followed with annealing the film at 2 different temperatures, 500 ºC using furnace and 180 ºC using hot plate, both treatments for 45 minutes in N2/H2S atmosphere. The X-ray difractograms were analyzed using Match 2 program and showed that the CZTS thin films had kesterit crystalline structure, with a low percentage of CZTS phase. The thin film also contained secondary phases such as Cu2S, ZnS, and SnS. The obtained CZTS thin films had a thickness between 1.039 and 1.676 μm. Absorption study showed that the band gap energy of CZTS thin films which was annealed using furnace ranged from 1.50 to 1.52 eV, whereas that annealed using the hot plate was not observed. The band gap energy value showed that CZTS thin films can be used as sunlight absorber layers on solar cell. The formation of CZTS crystal film on this investigation was effectively performed using furnace annealing process at a temperature of 500 ºC with deposition time of 45 minutes.
Keyword: Thin film, Electrodeposition, Cu2ZnSnS4