Judul: Performa ayam wareng betina fase pertumbuhan pada tingkat kepadatan yang berbeda
Abstrak: Wareng chicken was one of strains of local chicken. Different from other local chickens raised traditionally, Wareng chickens was raised intensively. This research was conducted to determine the effects of cage colony density on performance of Wareng pullets. Research was conducted at Indonesian Research Institut for Animal Production, Ciawi Bogor. This research was held for 5 weeks.
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Judul: Performa  Pertumbuhan  Ayam  Merawangarab  Generasi  Keempat Umur  1  Sampai  12  Minggu  dengan  Pakan  Berbeda
Abstrak: Salah satu upaya yang dapat dilakukan untuk meningkatkan produktivitas ayam lokal Indonesia adalah dengan meningkatkan kualitas genetik ayam kampung Indonesia yang dipelihara di peternakan rakyat. Penelitian ini bertujuan untuk mengkaji performa pertumbuhan ayam silangan dengan komposisi genetik merawang (M) yang berbeda (50% M dan 75% M) dan mengkaji interaksi antara faktor perbedaan genetik dan faktor perbedaan komposisi pakan serta mengetahui jenis pakan yang efisien untuk pertumbuhan ayam. Penelitian dilaksanakan di Laboratorium Lapangan Pemuliaan dan Genetika Ternak Fakultas Peternakan Institut Pertanian Bogor yaitu Juni sampai Desember 2020. Rancangan yang digunakan adalah Rancangan Acak Lengkap (RAK) pola faktorial terdiri dari faktor A yaitu jenis ayam persilangan dan faktor B adalah jenis pakan. Tidak terdapat interaksi antara perbedaan genetik pada ayam dan perbedaan komposisi pakan komersial yang diberikan. Jenis ayam silangan dan perbedaan pakan memiliki performa yang sama pada ayam umur 12 minggu., One of the efforts that can be done to increase the productivity of Indonesian local chickens is to improve the genetic quality of Indonesian native chickens kept on smallholder farms. This study aimed to examine the growth performance of cruciferous chickens with different merawang (M) genetic compositions (50% M and 75% M) and to examine the interaction between genetic differences and differences in feed composition and to determine the type of feed that was efficient for chicken growth. The research was carried out at the Field Laboratory of Animal Breeding and Genetics, Faculty of Animal Husbandry, Bogor Agricultural University, from June to December 2020. The design used was a completely randomized design (RAK) with a factorial pattern consisting of factor A, namely the type of cross-breed chicken and factor B, the type of feed. There was no interaction between genetic differences in chickens and differences in the composition of the commercial feed given. Cross breeds and feed differences had the same performance in 12 week old chickens.
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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