Judul: Performa Kelinci Potong Jantan Lokal Peranakan New Zealand White Yang Diberi Pakan Silase Atau Pelet Ransum Komplit
Abstrak: Complete ration silage has never been used in rabbits farm industry. Therefore, it is necessary to evaluate the quality in an attempt to reach feed security. The aim of this study was to compare and analize the effect of feeding complete ration silage on the performance of rabbits. This research used two diet treatments with six replications, each of which consisted of 6 rabbits with body weight of 1375.28 g ± 204.52. The treatments were complete ration pellet (R1) and complete ration silage (R2). The data obtained were analyzed using t-test. The result showed that the treatments significantly (P<0.01) affected feed consumption and body weight. The average feed consumption of New Zealand White was 824.49 ± 51.04 for complete ration pellet (R1) and 645.74 ± 19.16 for complete ration silage (R2). The average body weight for complete ration pellet (R1) was 1906.45±135.80 and it was 1663.15 ±110.07 for complete ration silage (R2). However, the treatments did not significantly influence daily weight gain, feed efficiency, carcass percentage and fat thighs. It can be concluded that complete ration silage has similar quality to complete ration pellet in terms of affecting performance of rabbits.
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Judul: Performa Produksi dan Organ Dalam Kelinci Peranakan New Zealand White Jantan yang Diberi Pelet Ransum Komplit Mengandung Daun Indigofera zollingeriana dan Leucaena leucocephala
Abstrak: The aim of the study was to compare and analize the effect of complete feed with different combination I. zollingeriana leaves and Leucaena leucochepala leaves on rabbit performance. This research used a randomized block design, with five dietary treatments and four replications. The treatments were R0 (commercial pellet ration with 0% Leucaena leucochepala and 0% I. zollingeriana), R1 (complete pellet ration containing 30% Leucaena leucocephala and 0% I. zollingeriana, R2 (complete pellet ration containing 20% Leucaena leucocephala and 10% I. zollingeriana), R3 (complete pellet ration containing 10% Leucaena leucocephala and 20% I. zollingeriana), R4 (complete pellet ration containing 0% Leucaena leucocephala and 30% I. zollingeriana). Variables observed were feed intake, body weight gain, feed efficiency, fat content, carcass and non carcass weight, liver, heart, kidneys weights and Income Over Feed Cost. The data were analyzed with analysis of variance, and the differences among treatment were examined with Duncan Range Test. The results show that all complete pellet ration having the same effect in improving the performance of rabbits. Complete ration pellet with 30% Leucaena leucocephala and completed ration pellet with 30% I. zollingeriana had a tendency to derease the fat content compared with commercial pellet rations. It can be concluded that complete pellet ration containing I. zollingeriana and Leucaena leucochepala can be recommended as rabbit pellet.
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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