Judul: Analisis Potensi Pengembangan Peternakan Rakyat Sapi Potong di Kabupaten Garut (Studi Kasus: Peternakan Kecamatan Malangbong)
Abstrak: Development of beef cattle breeding need to be conducted in order to fulfill the public demand of beef. The necessary informations to conduct the development of beef cattle breeding are the breeding's potential in every region and economic activities of the farmers in the region. The results of this research declare that farming activities in Kecamatan Malangbong with LQ analysis amounted 6.34 which means it is the highest breeding activities in Kabupaten Garut. The total cost of a private enclosure with a farmers amounting to IDR 30 313 639 and communal cages of IDR 29 710 747. Private cage breeders net income amounting to IDR 6 436 361 with R/C ratio of 1.21 and earning ratios of 21 percent. While the profits communal cages breeders amounted to IDR 7 039 253 with R/C ratio of 1.24 and earning ratios of 24 percent. Calculation of effective KPPTR in Kecamatan Malangbong produce a negative value of -3 150.99. Calculations obtained from the difference between the Maximum KPPTR Livestock Population Unit in Kecamatan Malangbong. Negative result means Kecamatan Malangbong is not able to accommodate the number of ruminant livestock, especially cattle. Then the development of should be implemented in other regions that have a positive KPPTR.
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Judul: Potensi Limbah Tanaman Pangan di Kabupaten Garut Jawa Barat untuk Pengembangan Budidaya Ternak Sapi Perah
Abstrak: Kabupaten Garut merupakan salah satu penyumbang produksi pertanian terbesar di Jawa Barat, sehingga juga memproduksi limbah pertanian yang dapat digunakan untuk sumber pakan. Penelitian ini bertujuan untuk mengidentifikasi limbah pertanian untuk pakan ternak sapi perah berdasarkan kuantitas dan potensi produksi limbah kabupaten menggunakan IKPP (Indeks Konsentrasi Produksi Pakan), mengidentifikasi kualitas nutrisi limbah pertanian, menentukan kapasitas tampung pengembangan sapi perah berdasarkan ketersediaan limbah pertanian sebagai sumber hijauan pakan ternak di Kabupaten Garut. Metode pengumpulan data primer diperoleh dari survey langsung, dan data sekunder dari dinas terkait. Hasil analisa potensi jumlah ketersediaan limbah yang besar berdasarkan nilai IKPP untuk pengembangan sapi perah berada di sembilan kecamatan yakni Bungbulang, Banjarwangi, Limbangan, Malangbong, Bayongbong, Pamulihan, Banyuresmi, Kadungora, dan Karangpawitan. Limbah pertanian terdiri dari empat komoditas yang digunakan sebagai pakan di Kabupaten Garut yaitu padi, jagung, ubi jalar, dan kedelai, jumlah produksi total limbah segar adalah 87 314.21 ton tahun-1 BK, 7 001.8 ton tahun-1 PK, 30 985.17 ton tahun-1 TDN. Jumlah efektif untuk penngembangan sapi perah yaitu berdasarkan ketersediaan total digestible nutrient 15 709 dan perbandingan pengembangan ternak sapi perah dengan jumlah ternak yang sudah ada adalah 5.45 kali lipat.
Keyword: Potensi pakan, Kapasitas tampung, Sapi perah

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