Judul: Evaluasi Morfologi dan Sistem Indeks Serta Respon Fisiologis Domba Ekor Tipis dan Domba Garut pada Umur dan Ransum yang Berbeda
Abstrak: This paper is concerned of body measurements associated with production characteristics also as indicators of type of sheep. The experiment was conducted at university area on morphology and physiologycal respone (pulse rate, respiration rate, and rectal temperature) in intensive system. Live weight and eight body measurements were taken on 32 local sheep consisted of 16 garut sheep (8 fat lamb and 8 yearling) and 16 javanese thin-tailed sheep sheep (8 fat lamb and 8 yearling). They were divided into two groups and given Indigofera sp. and mung bean waste. The data were recorded every 30 days. The body measurements used were live weight, shoulder width, foreleg length, body length, rump height, rump width, rump length and heart girth. The indices used were weight, height slope, length index, width slope, depth index, foreleg length, balance and cumulative index. The data were analyzed by factorial 2x2 (body measurements) and 2x2x3 (physiologycal respone) with Statistix 8.0. The measured parts were highly correlated. Tested indices showed that both sheep are typical of meat animals. This was shown by the cumulative index, length and balance indices which were 1,66; 0,91; and 0,75 for both breeds. The respective coefficient of variation between breeds indicates the opportunity for improving the breeds through selection. The index results of index system showed that in both sheep had height slope/cumulative index, height slope index/length index and weight index were significantly (P<0.01) correlated. Rectal temperature in the morning was higher than at noon and afternoon. The physiological result showed that there were significant differences (P<0,01) on respiration by time, also rectal temperature and pulse rate by time and breed.
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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: 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