Judul: Karakteristik kualitatif dan kuantitatif hasil persilangan ayam pelung dan arab
Abstrak: The research was conducted to get information about qualitative and quantitative characteristics on crossbreeeding local chicken between Pelung and Arab chicken (PxA). It was done based on lowness of performance local chicken in Indonesia which are correlation with lowness of protein consumption rate. Crossbred PxA chicken were expected to show better productivities performance of the crossbred chicken were grow rate, increasing body weight, and body measurements. T-test and Principal Component Analysis was used to explain crossbred PxA chicken performances.. Crossbred chicken showed a good performance potency. Males body weight were 587.33±58.93 g (10.03% of coeficient variation) and the females were 501.42±70.53 g (14.07% of coeficient variation) at the seventh weeks in ages. The body weight was showed significant difference (P<0.05) on the third week in ages between males and females crossbred PxA chicken, and very significant difference (P<0.01) at the forth till seventh week. Significant increasing body weight both of males and females crossbred PxA chicken were at the fust to second week interval. Body measurements were showed significant difference (P<0.05) for length of third finger, shank, back, and body weight at the eleventh week of ages, and very significant difference (P<0.01) for length of wings, height of comb, and height of head. The heighest variety of body measurement both of males (25.0%) and females (27.78%) at the eleventh week in ages was in length of maxilla, and the lowest variety both of them in length of third finger.
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Judul: Performa Produksi Hasil Persilangan Ayam Pelung x Sentul x Kampung x Ras Pedaging Umur 12-21 Minggu
Abstrak: This research studied the performance of PSKB and PSBK chicken in growth phase (12-21 weeks). PSKB chicken was crossbred between pelung-sentul (PS) cock with kampung-meat type (KB) hen. PSBK chicken was crossbred between pelung-sentul (PS) cock with meat type-kampung (BK) hen. This research used 12 males PSKB, 23 females PSKB, 11 males PSBK, and 9 females PSBK. Variables measured were body weight, body weight gain, feed intake, feed conversion, mortality, age of first egg, weight of first egg, and indexs of egg. The result of this research were not significant (P>0.05) between PSKB cock with PSBK cock and PSKB hen with PSBK hen on body weight, body weight gain, feed intake, feed conversion, weight of first egg, and indexs of egg. Age of first egg were significantly different (P<0.05) between PSKB hen with PSBK hen. The males of PSKB and PSBK had better performance than the females. Crossbred of pelung, sentul, kampong, and meat type showed better performance than local chicken.
Keyword: crossbred, performance, PSBK chicken, PSKB chicken

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