Judul: Characteristics of Carcass and Non Carcass Components of Bali and Bali-Angus Crossbreed Cattle on Intensive Rearing System
Abstrak: Carcass and non-carcass are the main product of livestock after slaughter process that has highly economic value. This study aims to evaluate the carcass characteristics and non-carcass components of bali and bali-angus cross cattle. The livestock used in this study were 5 bali bull with an average slaughter weight 235,2 ± 28,0 kg and 5 bali-angus cross bull with an average slaughter weight 338,6 ± 74,8 kg. The variables observed included carcass characteristic components, namely initial weight, slaughter weight, hot carcass and cold carcass weight and percentage, and chilling loss of carcass Furthermore, edible non-carcass weight include fore and hind legs, tail, head, skin, liver, heart, lungs, trachea, kidneys, digestive tract and spleen. The data obtained were analyzed using the T-test. The results showed that the initial weight, slaughter weight, hot carcass and cold carcass weight were significantly higher for bali-angus cross compare to bali cattle (P <0,05). In addition, the weight of fore and hind legs, tail, liver and spleen of bali-angus cross was significantly higher compare to bali cattle (P <0,05), whereas for others components were similar between breeds. Slaughter weight of bali cattle and bali angus cross which have a high slaughter weight will affect the carcass characteristics and non carcass components produced.
Keyword: carcass, non-carcass, bali cattle, bali-angus cross

Judul: Productivity and Economic Value of Bali Cattle at Different Age Groups
Abstrak: Sapi bali adalah ternak asli dari Indonesia dan memiliki persentase karkas yang lebih tinggi dibandingkan dengan sapi lokal lainnya. Produktivitas sapi yang tinggi akan menghasilkan nilai ekonomis yang tinggi pula. Tujuan penelitian ini adalah untuk membandingkan produktivitas karkas dan non karkas serta nilai sapi bali pada kelompok umur berbeda. Ternak yang digunakan adalah sapi bali sebanyak 16 ekor yang dipotong dalam rangka hari raya Iduladha. Penelitian yang dilakukan mencangkum pengukuran bobot potong, bobot dan persentase karkas, komponen karkas (daging dan tulang), dan komponen non karkas yaitu kepala, kulit, kaki, jeroan (offal) merah, dan jeroan (offal) hijau, serta nilai dari sapi hidup dan masing-masing komponen karkas dan non karkas. Hasil penelitian menunjukkan bahwa produktivitas komponen karkas dan non karkas sapi bali relatif sama pada kelompok umur yang berbeda. Persentase kulit merupakan satu-satunya yang menunjukkan hasil yang berbeda nyata pada kelompok umur yang berbeda. Nilai komponen karkas dan non karkas sapi bali yang dipotong untuk hari raya Iduladha tidak menghasilkan nilai tambah yang ditunjukkan dengan nilai negatif jika divaluasi dengan nilai bobot hidupnya, sehingga sapi bali yang dijual dalam kondisi hidup untuk hari raya Iduladha menunjukan nilai tertinggi., Bali cattle are indegenous livestocks from Indonesia and it’s known to have higher carcass percentage than other local cattle. High productivity in cattle leads to its high economical value as well. This study aimed to compare the carcass and non-carcass yield and economic value of Bali cattle that were slaughtered at different age groups. The study used 16 heads of Bali cattle sold for Eid al-Adha. The study included measurement of slaughter weight, weight and percentage of carcass, carcass components comprising meat and bone, and non-carcass components including head, skin, foot, red offal, green offal, and economic values of live cattle and components of carcass and non-carcass. The results showed that the productivity of carcass and non-carcass components of Bali cattle were relatively the same at different age groups. The skin percentage was the only indicator that was significantly different among age groups. Bali cattle that were slaughtered for Eid al-Adha had no added value shown with negative value when they were valued as carcass and non-carcass components and therefore live cattle sold for Eid al-Adha had the highest economic value.
Keyword: karkas, nilai, non karkas, sapi bali, umur, age, Bali cattle, carcass, economic value, non-carcass

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