Judul: Efek Penambahan Cassabio dalam Ransum terhadap Performa Anak Domba Lokal
Abstrak: Cassava pulp isone of the tapioca industry by-product that can be used as animal feed. However, the quality of cassava pulp is relatively low due to its low protein and high crude fiber content. Cassava pulp with addition of zeolite, urea, ammonium sulphate, that fermented by Aspergillus niger produced the product that called cassabio. The experiment of using cassabio on broiler have been done. However, there is no experiment of using cassabio on performance of ruminants. The objective of this research is to evaluate the effect of levels cassabio in concentrate on performance of local lamb. The experiments design was randomized block design with four treatments and three replications, and local lambs were used as replications. The treatments were addition levels of cassabio into concentrate at levels of 0% (P0), 20% (P1), 40% (P2), and 60% (P3). Variables that measured were feed consumption, average body weight gain, and feed efficiency. Data were analysed by analysis of variance (ANOVA)and differences among treatments were determined by Duncan test. The result showed that the cassabio levels P0, P1, P2, dan P3 for BWG was76.19; 81.43; 84.29; and 96.90 g head-1 day-1respectively; for intake was 444.34; 463.13; 483.03 and 493.52 g head-1 day-1respectively; feed efficiency was 0.17; 0.18; 0.17; and 0.20 respectively. The conclusion of the research was using cassabio up to 60% (P3) in concentrate produced the good results without negative effect on local lamb performance.
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Judul: Evaluasi penambahan cassabio ke dalam ransum terhadap konsumsi dan kecernaan zat makanan pada anak domba lokal
Abstrak: Tujuan dari penelitian ini adalah untuk menguji pengaruh taraf penambahan cassabio ke dalam konsentrat terhadap konsumsi dan kecernaan nutrien dan energi yang diberikan kepada domba lokal pada fase pertumbuhan. Percobaan dilakukan dengan menggunakan rancangan acak kelompok dengan empat perlakuan dan tiga ulangan, domba lokal yang digunakan sebagai ulangan adalah domba ekor gemuk dengan bobot badan berkisar 13,2-15,7 kg. Perlakuan yang diterapkan adalah penambahan cassabio ke dalam konsentrat pada taraf 0% (P0), 20% (P1), 40% (P2), dan 60% (P3). Penggunaan konsentrat 60 % dengan penambahan rumput gajah sebanyak 40% dari total pemberian pakan. Variabel yang diukur kecernaan BK, bahan organik, protein kasar, serat kasar, lemak kasar, bahan esktrak tanpa nitrogen, total digestible nutrient (TDN) dan digestible energy (DE). Data dianalisis dengan analisis varians (ANOVA) dan perbedaan antara perlakuan diuji dengan uji Duncan.
Keyword: Bogor Agricultural University, Institut Pertanian Bogor, IPB, Cassabio, Cassava by product, Consumption, Digestibility, Local sheep

Judul: Metrik Einstein (Anti-) Self-Dual Berdimensi Empat dengan Metode Cartan
Abstrak: Gravitational field equation can be formulated in differential forms (differential geometry), which describes gravity as a manifestation of the curvature of space-time. Curvature of space-time is characterized by a metric that satisfies the gravitational field equation. With differential forms it can be formulated the (anti-) self-dual Einstein equation, which is a modification of the Cartan structure in (anti-) self-dual basis. Calculation of (anti-) self-dual metric with (anti-) self-dual Einstein equation is simpler than the calculation using Christoffel symbols.
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