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: Feeding Behavior and Performances of Different Aged Male Senduro Goat Fed on Mash and Pellet of Starter Concentrate
Abstrak: Penelitian ini betujuan menganalisis tingkah laku makan dan performa kambing Senduro fase lepas sapih dan fase pertumbuhan yang diberi konsentrat starter berbentuk mash dan pellet. Penelitian ini menggunakan rancangan acak kelompok (RAK) pola faktorial 2x2 dengan 3 ulangan. Faktor pertama adalah bentuk konsentrat starter yang terdiri dari P1 = mash dan P2 = pellet. Faktor kedua adalah umur ternak yaitu K1 = fase lepas sapih dan K2 = fase pertumbuhan. Data dianalisis menggunakan Analysis of Variance (ANOVA) dan perlakuan yang berbeda nyata diuji lanjut dengan Uji Duncan. Hasil penelitian menunjukkan bahwa bentuk konsentrat berpengaruh (P<0,05) terhadap prehensi dan mastikasi kambing. Prehensi konsentrat starter juga dipengaruhi (P<0,05) oleh umur kambing. Perbedaan bentuk konsentrat tidak berbeda nyata (P>0,05) terhadap konsumsi nutrein kambing. Umur kambing mempengaruhi (P<0,05) konsumsi nutrien dan Pertambahan Bobot Badan Harian (PBBH). Konsentrat starter berbentuk pellet menghasilkan PBBH dan efisiensi pakan lebih tinggi (P<0,05). Simpulan dari penelitian ini adalah konsentrat starter berbentuk pellet lebih efisien dalam meningkatkan performa kambing Senduro., This study aimed to analyze the feeding behavior and performance of Senduro goats fed on different forms of starter concentrate during post-weaning and growth period. This study used a 2x2 factorial randomized block design with 3 replicates. The first factor is concentrate forms (P1 = mash form and P2 = pellet form). The second factor is age of goats (K1 = post-weaning phase and K2 = growing phase). The variables observed were feeding behavior, nutrient consumption, average daily gain (ADG), and feed efficiency. Data were analyzed using Analysis of Variance (ANOVA) and continued with Duncan Test if the treatment means were significantly different. The results showed that the form of concentrate a significantly affected (P<0.05) prehension and mastication in goat feeding behavior. Prehension of starter concentrate was also influenced (P<0.05) by goat age. Nutrient intake of Senduro goat kids fed on different forms of concentrate didn‘t show significant differences (P>0.05). Goat age significantly affected (P<0.05) nutrient intake and average daily gain (ADG). Providing pellet-form starter concentrate resulted in higher average daily gain and feed efficiency (P<0.05) compared to mash-form concentrate. In conclusion, pellet-form starter concentrate is more efficient in enhancing the performance of Senduro goat kids.
Keyword: feeding behaviour, performance, mash, pellet, senduro

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