Judul: Performance of Cattles Given Ration Containing Palm Oil Waste (Quantitative Study)
Abstrak: Penelitian ini bertujuan untuk mengkaji secara kuantitatif performa sapi pedaging yang diberi ransum mengandung limbah kelapa sawit (pelepah sawit, bungkil sawit, dan kombinasinya). Penelitian dilakukan melalui kajian kuantitatif berdasarkan artikel penelitian yang dipublikasi di jurnal ilmiah. Pengumpulan data yang diperlukan, diperoleh dari 10 jurnal terakreditasi nasional dan 4 jurnal internasional bereputasi. Analisis yang dilakukan terhadap data yang diperoleh adalah perhitungan persamaan regresi linier, perhitungan persamaan regresi nonlinier sederhana, dan perhitungan koefisien determinasi (R2 ). Hasil penelitian menunjukkan bahwa penambahan pelepah sawit pada ransum sapi meningkatkan pertambahan bobot badan (PBB) dan regresi yang signifikan (P<0,05) . Nilai kecernaan pelepah sawit masih pada rentang kecernaan yang baik. Level pemberian optimum pelepah sawit yaitu 39,84% dalam meningkatkan PBB sapi. Pemberian bungkil sawit pada ransum sapi juga meningkatkan PBB dengan nilai regresi yang sangat signifikan (P<0,01), dan level optimum pemberian sebesar 13,98%. Namun demikian, peningkatan level pemberian bungkil sawit dapat meningkatkan konsumsi PK dan KcPK. Penambahan kombinasi pelepah sawit dan bungkil sawit memperlihatkan hasil regresi tidak signifikan terhadap PBB sapi (P>0,10)., This study aims to assess quantitatively the performance of beef cattle fed a ration containing palm oil waste (palm frond, oil palm cake, and their combination). The research was conducted through quantitative studies based on research articles published in scientific journals. The required data collection was obtained from 10 nationally accredited journals and 4 reputable international journals. The analysis carried out on the data obtained is the calculation of the linear regression equation, the calculation of nonlinear regression, and the calculation of the coefficient of determination (R2 ). The results showed that the addition of palm fronds to the cattle ration increased body weight gain and had a significant regression (P<0.05). The digestibility value of the palm fronds is still in a good digestibility range. The optimum level of palm fronds giving was 39.84% in increasing body weight gain of cattle. Oil palm meal on cattle rations also increased body weight gain with a very significant regression value (P<0.01), and the optimum level of giving oil palm meal was 13.98%. Increasing the level of oil palm meal can increase the consumption of crude protein and crude protein digestibility. The addition of a combination of palm fronds and oil palm meal showed a not significant regression results for body weight gain of cattle (P>0.10).
Keyword: cattle performance, oil palm cake, oil palm frond, palm waste

Judul: Substitutions of coconut meal with corn oil in young local males sheep and effect on nutrient digestibility
Abstrak: Tujuan dari penelitian ini adalah untuk menilai kecernaan zat makanan pakan dengan pemberian level minyak jagung yang berbeda (0%, 1.5%, 3%, 4,5%) sebagai pengganti bungkil kelapa pada domba jantan muda lepas sapih. Penelitian ini dilakukan di kandang B, laboratorium PAU, Departemen Nutrisi dan Teknologi Pakan. Penelitian ini dilakukan dari Agustus 2011 sampai dengan November 2011, dan analisis kecernaan dilakukan pada Desember 2011. Ternak yang digunakan adalah dua belasdomba lokal jantan lepas sapih usia ± 2 bulan, dengan berat badan awal 9.467 ± 2.189 kg. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Kelompok (RAK) pola searah dengan 1 perlakuan yang terdiri dari 4 macam ransum dan 3 ulangan. Pengelompokan berdasarkan pada berat badan kecil (7.35 ± 0.91 kg), sedang(9.05 ± 1.28 kg), dan besar (12.00 ± 0.588 kg). Empat perlakuan yang diuji adalah MJ0 = 0% minyak jagung (pakan kontrol), MJ1.5 = pakan kontrol + 1,5% minyak jagung, MJ3 = pakan kontrol + 3% minyak jagung, MJ4.5 = pakan kontrol + 4.5% minyak jagung . Hasil penelitian menunjukkan bahwa MJ0, MJ1.5, MJ3, MJ4.5 tidak berpengaruh terhadap kecernaan bahan kering, bahan organik, protein kasar, lemak kasar, serat kasar dan TDN tetapi secara signifikan mempengaruhi daya cerna BETN . Disimpulkan bahwa suplementasi minyak jagung hingga 4,5% pada ransum domba lokal jantan lepas sapih tidak mempengaruhi kecernaan ransum., The aim of this research was to assess digestibility of ratio with different levels of corn oil (0%, 1.5%, 3%, 4.5%) as substitute to coconut mael the post weaning local male sheep. The research was conducted in stable B, PAU laboratory, Department of Nutrition and Feed Technology. The research was conducted from Augst 2011 until November 2011, and the digestability analysis was carried out in December 2011. The animals used were twelve post weaning male local sheeps aged of ±2 months, with initial body weight of 9.467±2.189 kg. The experiment design used in this study were block design with four treatments and three replications. The block was based on body weight of small (7.35±0.91 kg), medium (9.05±1.28 kg), and large (12.00±0.588 kg). Four levels of substitution were tested. They were MJ0 = 0% corn oil (control diet), MJ1.5= control diet + 1.5% corn oil, MJ3= control diet + 3% corn oil, MJ4.5= control diet + 4.5% corn oil. The results showed that MJ0, MJ1,5, MJ3, MJ4.5 didn’t affect to digestibility of dry matter, organic matter, crude protein, crude fat, crude fiber and TDN but significant influenced digestibility BETN. It was concluded that supplementation up to 4.5% of corn iol in post weaning local male sheep ration didn’t influence the ration digestibility.
Keyword: domba lokal, minyak jagung, kecernaan nutrien

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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