Judul: Aplikasi Indeks Morfologi dalam Pendugaan Bobot Badan dan Tipe atau Jenis pada Domba Ekor Gemuk dan Domba Ekor Tipis.
Abstrak: Indeks adalah alternatif dalam penilaian ternak sebagai indikator tipe dan fungsi ternak. Indeks dianggap paling tepat dalam penilaian bobot badan karena mencangkup konformasi atau bentuk ternak, panjang dan keseimbangan tubuh ternak. Indeks diharapkan menjadi alternatif uji empiris dengan terbatasnya pengukuran tunggal untuk penilaian bobot dan tipe ternak. Indeks juga diharapkan dapat meningkatkan kemampuan peternak dalam mengevaluasi ternak dan juga dapat meningkatkan kemampuan dalam memilih potensi breeding stock.
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Judul: Aplikasi Indeks Morfologi dalam Pendugaan Bobot Badan dan Tipe atau Jenis pada Domba Ekor Gemuk dan Domba Ekor Tipis
Abstrak: Body weight and eight body measurements records taken on 78 male sheep comprising 64 Javanese Fat Tailed and 14 Javanese Thin Tailed sheep were analysed. The sheep were semi-intensively managed within the West Java. The aim to achieve a preliminary assessment of weigth and type from zoometrical indices produced from combinations of different morphometric scores. The body measurements used were body length, girth depth, chest width, wither height, hip width, rump height, chest depth, rump length. The indices used were weight, height slope, length index, width slope, depth index, foreleg length, balance and cumulative index. The body measurements showed that the Javanese Fat Tailed is bigger than the Javanese Thin Tailed sheep. Tested indices showed that Javanese Fat Tailed sheep are meat typical. This was shown by the cumulative index and balance indices which were 3.66 and 0.60 in Javanese Fat Tailed sheep. Girth depth in both breeds can be the assessment of body weight because had highest correlation (p<0.05) i.e. 0.62 in Javanese Fat Tailed and 0.92 in Javanese Thin Tailed sheep. Keywords : Body measurements, Indigenous sheep, Indices, Type.
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Judul: Pembuatan Film Tipis Cu2ZnSnS4 sebagai Lapisan Penyerap Cahaya pada Sel Surya Menggunakan Metode Elektrodeposisi
Abstrak: Thin film of Cu2ZnSnS4 (CZTS) is an alternative semiconductor used as light absorber layer on solar cell. CZTS can replace silicon that commonly used as commercial semiconductor. The advantage of using CZTS as absorber layer is due to the abundance of its chemical composer on earth, and its high value of absorption coefficient. The absorber layer was made by using electrodeposition method on ITO glass substrates. The films were deposited at room temperature using potentiostatic mode with a potential of –1.05 V for 30, 45, and 60 minutes. After that, the films were annealed at two different temperatures, 180 ºC and 500 °C, for 45 minutes in N2/H2S atmosphere. Based on X-ray diffraction analysis, the polycrystalline thin film obtained fall into kesterite crystal phase. This type of crystal was obtained when the CZTS was annealed at 500 °C in H2S/N2 atmosphere. The value of optical band gap energy for the CZTS thin film was 2.2 eV with the film thickness about 1.228–6.366 μm. The sample of CZTS with electrodeposition time of 45 minutes and annealing temperature of 500 °C showed the best result and in conformity with absorber layers criteria for solar cells.
Keyword: semiconductor, ITO glass, CZTS thin film, electrodeposition