Judul: Faktor-faktor pendukung dan penghambat pengembangan usaha ternak sapi perah (studi kasus di Kelurahan Kebon Pedes Kecamatan tanah Sareal Kota Bogor)
Abstrak: Dairy farms have a high opportunity to be developed, but the farmers faced constraint those can be threat the sustainability of the dairy farms. During 1999- 2003, the average milk consumption per capita in Indonesia increased as much as 1.05% per year. A case study was carried out to understand the supporting and constraint factors for dairy farms development in Kebon Pedes, Bogor during May to June 2005. Thirty farmers by census and 30 people live around the farm by purposive were used as sample. Descriptive analysis, financial and milk demand forecast were used to analyze data. The farmer's average income per year was Rp 30,465,334.16 and R/C ratio was 1.93. It indicated that the dairy farm in Kebon Pedes was feasible. The supporting factors for dairy farm's development in Kebon Pedes were farmer knowledge, milk price, financial, institution, dairy cattle populatio~i and demand of milk in Bogor, which increase every year. The constraint factors are climate, land, and the environment pollution.
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Judul: Kinerja Usahaternak Sapi Perah pada Kedua Kelompok Ternak di Kelurahan Kebon Pedes, Kota Bogor
Abstrak: Dairy cows is one of animal husbandry that produce milk. The production of dairy cow milk in Indonesia is lower than the demand of milk. So, animal husbandary milk has good chance and prospect in business. Bogor is one of city in West Java which has numbers of family with lifelihood rely their family on animal husbandry business. There are two cattle farmers groups that still operate in Bogor, Kelompok Ternak Maju Terus („Maju Terus‟ Cattle Group) and Kelompok Ternak Sumber Makmur („Sumber Makmur‟ Cattle Group). The purpose of this research is to analyze the determinant factors of milk production and the influnce of milk production to business performance in both cattle group in Kebon Pedes, Bogor, West Java. The income approach and R/C ratio analysis are used to gain the research purpose. The result of this research are the determinant factors that statistically significant are the number of productive cows, the amount of feed both green feed and „waste‟ feed, otherwise concentrate is not statistically significant. The cattleman performance of („Maju Terus‟ Cattle Group is better than „Sumber Makmur‟ Cattle Group for the R/C ratio is higher.
Keyword: dairy cow, R/C ratio, income approach, performance

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