Judul: Konsumsi dan Pertumbuhan Kambing Peranakan Etawa Periode Prasapih yang diberi Ransum Strater dengan Cara Bebas Pilih
Abstrak: One of the ways to satisfy the needs of livestock, But befitting with a preferred feed livestock is to use the cafeteria feeding system. The cafeteria feeding give opportunity for animal to choose his favorite feed ingredients. The research worked on two groups of goat kids (6 goat kids) fed a starter ration mix and cafeteria feeding. The observed variables were body weight gain, feed intake, consumption of nutrients, and feed efficiency. This study aims to provide information feedstuffs favored by the kid and get a starter ration composition using the cafeteria feeding system. The results showed a propensity to consume pollard and soybean meal. The cafeteria feeding system generates the following composition of feed ingredients pollard (49.62%), corn (2.41%), soybean meal (20.96%), cassava (23.56%), and coconut meal (3.45%). The performance of the two treatments is cafeteria feeding and mix body weight 10.67 (kg) and 11.177 (kg) and feed efficiency of 0.48 and 0.46.
Keyword: Bogor Agricultural University (IPB), starter fed., etawa breed goat, goat kids, cafeteria feeding, Animal welfare

Judul: Produktivitas Kambing Peranakan Etawah Jantan dan Betina dengan Pemberian Ransum Grower Komplit Tinggi Energi dan Protein
Abstrak: Etawah goats in growing phase require a complete and balance nutrition for growth and preparation for reproduction phase, especially energy and protein. This research aimed to compare the productivity of Etawah growing kids fed with high energy and proteins complete rations based on NRC (2006). This research used 4 male and 4 female goats at 4 months age with initial body weight of 11.38±3.15 kg and 12.13±2.70 kg, respectively the data were analyzed with TTest with 2 treatments (male and female) and 4 groups. Concentrate and forages ratio was 90% and 10% from total feed. Parameters in this research were dry matter intake, body weight gain, protein efficiency ratio, and feed conversion ratio. Statistical analysis showed that no significant results for dry matter intakes (g day- 1), but body weight gain (g day-1), feed conversion ratio and protein efficiency ratio of male goats was significantly (P<0.05) better than female group. These results indicated that consumption and body weight gain were in line with NRC (2006) recomendation so as to the implementation in Indonesia needs to be further investigated.
Keyword: Bogor Agricultural University (IPB), performance, high energy protein rations, feed conversion, etawah growing kids

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