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: Respon Fisiologis dan Tingkah Laku Domba Garut Jantan dengan Pakan dan Manajemen Pemberian Pakan Berbeda
Abstrak: Improving feeding and managament for sheep it is normally because of improving their performance. Thereby it can be effected to their physiological response and behaviour. This research aimed to compare physiological response and behaviour of garut rams with feed and different management feeding. This research used 16 garut rams (I0) with 2 factors and 4 replicates. First factors is type of feed R1 (40 % grass + 60% concentrate 1) dan R2 (40% mung bean sprout waste + 60% concentrate 2) and the second factors is management feeding in the morning (P) and management feeding in the afternoon (S). Physiological response were observed such as respiration, heart rate, and rectal temperatures. Behaviour were observed such as ingestive behaviour, licking and biteing other goods, resting, eliminasi, vokalisasi, and agonistic. Physiological response and behaviour data were analyzed by analysis of variance (ANOVA). The result shows that heart rate effected by feed. Sheep which is given feeding mung bean sprout waste have a higher value on heart rate (P<0.01). Rectal temperature efected by feed and management. Sheep which is given feeding mung bean sprout waste (P<0.01) and management feeding in the afternoon (P<0.05) have a higher value on rectal temperatures. Management feeding factors in morning of measuring ingestive behaviour have a higher value (P<0.05) but for resting behaviour, management feeding factors in the afternoon have a higher value (P<0.01). The grass have a higher value for eliminative in daylight periode (P<0.05). Both of factors were not significantly different (P>0.05) for measuring all of behaviour garut rams in the allnight periode.
Keyword: physiological response, garut rams

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