Judul: Program Breeding Sapi Potong Brahman Cross (Studi Kasus di PT Widodo Makmur Perkasa, Cikalong Kulon, Cianjur, Jawa Barat)
Abstrak: FAHMI. Brahman Cross Cattle Breeding Program (Case Study in PT Widodo Makmur Perkasa, Cikalong Kulon, Cianjur, Jawa Barat). Under direction of R. KURNIA ACHJADI. Brahman Cross cattle breeding progam plays an important role in improving the brahman cross cattle population in Indonesia to meet the needs of national meat. This case study aims to determine the applied breeding programs in PT Widodo Makmur Perkasa (PT WMP) and various problems that often arise in raising brahman cross cattle.This study was based on a descriptive survey method of collecting primary data through interviews of staff and several workers at PT WMP and secondary data obtained from the existing data in PT WMP and literature. The results of the study showed that breeding program conducted at PT WMP is an program artificial insemination with a value of conception rate (CR) is 46% and the value of service per conception (S / C) is ≥ 1,5. Some disorder that often arise in Brahman Cross cattle is distochia and abortion. Key words: PT. Widodo Makmur Perkasa, Brahman Cross Cattle, and artificial insemination
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Judul: Kajian Penampilan Reproduksi Sapi Brahman Cross Program Aksi Perbibitan di Indonesia
Abstrak: Tulisan ini bertujuan untuk untuk mengamati dan mengkaji tampilan reproduksi sapi Brahman Cross ex-impor yang dibuntingkan dan disebar ke daerah-daerah di Indonesia. Sebanyak 7.782 ekor sapi Brahman Cross yang telah beradaptasi minimal 3,5 bulan dan bunting 3 bulan telah didistribusikan oleh pemerintah (Direktorat Jenderal Peternakan dan Kesehatan Hewan) selama 3 periode yaitu 2006, 2007, dan 2008. Sebanyak 4.387 ekor anak sapi atau pedet telah lahir di 3 regional yang berbeda yaitu Sumatera, Jawa, dan Kawasan Timur Indonesia (Kalimantan Selatan, Kalimantan Timur, Sulawesi Selatan, Sulawesi Tengah, dan Gorontalo). Data diatas menunjukkan persentase kelahiran sebesar 56,4% selama masa 2,5 tahun program. Program evaluasi dan pengawasan telah dilaksanakan oleh Dinas Peternakan Indonesia dibawah Direktorat Jenderal Peternakan dan Kesehatan Hewan pada tahun 2008 dan 2009. Banyak kendala yang ditemukan, seperti malnutrisi, berahi tenang (silent heat), kawin berulang (repeat breeding), anestrus, bahkan kematian. Hasil-hasil yang ditemukan mengindikasikan bahwa program aksi perbibitan nasional Indonesia ini membutuhkan perbaikan secara menyeluruh yang mengacu pada Good Breeding Practices (GBP)
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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