Judul: Performa domba jantan lokal dengan perlakuan pakan yang berbeda selama dua bulan penggemukan
Abstrak: The aims of this study were to observe the performance of local male sheep, fed with experimental diets which were differentiated according the ratio of complete ration and grass (Brachiaria hurnidicola). The 12 local male sheep under one year old with average body weight of 15.87 1.00 kg (CV = 7.15%) were used in this study and allotted to the four experimental ration there were P1 (Complete feed 20% : Brachiaria humidicola 80%); P2 (Complete feed 80% : Brachiaria humidicola 20%); P3 (Complete feed 80% : Brachiaria humidicola 20% was given in the first month of the experiment then followed by Complete feed 20% : Brachiaria hurnidicola 80% for following month). The parameters measured were body weight gain, feed consumption, feed conversion ratio and Income Over Feed Cost. Randomized Complete Design were used in this experiment and the data were analyzed with analysis of variance (ANOVA). The result showed that the experimental treatment significantly (Pi0.05) affected daily feed consumption but the were no differences between treatments on body weight gain as well as feed conversion ratio. The highest profit was found in P2
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Judul: Performance of Garut sheep on Different frequency of feeding
Abstrak: Penelitian ini bertujuan mengkaji frekuensi pakan yang berbeda terhadap pertambahan bobot badan domba jantan. Materi yang digunakan sebanyak 24 ekor domba jantan rataan bobot badan 21.8±1.48 kg dan rataan umur 1 tahun 5 bulan (I1). Metode penelitian yaitu menggunakan rancangan acak lengkap. Perlakuan yang diberikan adalah perlakuan F0 (5 kali hari-1) dengan konsentrat pemberian pakan pertama, perlakuan F1 (4 kali hari-1) dengan hijauan pakan pertama, dan perlakuan F2 (5 kali hari-1) dengan hijauan pakan pertama . Peubah yang diamati meliputi PBBH (Pertambahan Bobot Badan Harian), konsumsi BK (Bahan Kering), konversi pakan, dan efisiensi pakan. Data yang dianalisis ragam (ANOVA), dilanjutkan analisis Duncan. Hasil penelitian menunjukkan PBBH, konversi pakan, efisiensi pakan tidak berbeda nyata, sedangkan konsumsi BK berbeda nyata (P<0.05). Konsumsi BK pada F0 terendah dibandingkan F1 dan F2 serta F1 tertinggi. Simpulan penelitian ini adalah frekuensi pemberian pakan 5 kali hari-1 dengan hijauan sebagai pakan pertama dipagi hari menghasilkan performa yang lebih baik dibandingkan frekuensi 4 kali hari-1 serta frekuensi 5 kali hari-1 dengan pemberian konsentrat terlebih dahulu di pagi hari., This research is to examine different frequency feeding of weight gain on male sheep. Material used is 24 male sheep with average weight 21.8+-1.48 kg and average age 1 year 5 month (I1). Method used in this research is complete random design. Treatment which given is F0 (5 times in 1 day) with concentrate in a first give, treatment F1 (4 times in 1 day) with grasses in a first give, and treatment F2 (5 times in 1 day) with grasses in a first give. Variable which observed is ADG (Average Daily Gain), dry matter consumption, feed convertion, and feed efficiency. Data will analyzed with variate analysis, and then with Duncan analysis. Result of this research shown that ADG, feed convertion, and feed efficiency is not real different, while dry matter consumption is real different (P<0.05). Dry matter consumption on F0 treatment is a lowest than F1 and F2 treatment. Conclusion of this research is feeding 5 times in 1 day with grasses as a first feed on morning have better performance than 4 times in 1 day frequency and 5 times in 1 day frequency with concentrate in a first feed.
Keyword: frequency of feed, Garut sheep

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