Judul: Pemanfaatan Limbah Udang Sebagai Salah Satu Komponen Ransum Domba Lokal Jantan dan Pengaruhnya Terhadap Kecernaan Lemak, Energi, dan Retensi Nitrogen
Abstrak: Shrimp waste from shrimp industry, composed of head, shell, and a little bit of flesh which is about 30-40% of the shrimp’s weight. Shrimp waste contain 14-19% crude fiber with 12.24% khitin. The aim of this experiment was to examine the level of shrimp waste on nutrient digestibility in ram. Completely Randomize Design with 4 treatments and 4 replications used in this experiment. The treatments were P0 (soybean meal 13.5% + Shrimp waste 0%), P1 (soybean meal 9% + Shrimp waste 10%), P2 (soybean meal 4.5% + Shrimp waste 20%) and P3 (soybean meal 0% + Shrimp waste 30%). The variables measured were ram performance ie. average daily weight gain, feed consumption, feed convertion, lipid digestibility, energy digestibility and nitrogen retention. Data were analyzed using analysis of variance (ANOVA) and the significant result would be continually examined using Duncan Multiple Range Test. The result showed that treatments significantly affected daily weight gain, feed convertion, lipid and energy digestibility. The average of daily weight gain as well as lipid digestibility of P3 was significantly (P<0.05) lower than the other treatments. There were no significant differences between treatments PO, P1, and P2. There were also no significant differencces among treatments on nitrogen retention.
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Judul: Substitusi Tepung Ikan dengan Bungkil Kedelai Dalam Ransum Yang Mengandung Ampas teh (Camelia sinensis) Terhadap Performan Domba Lokal Jantan
Abstrak: The subtitution of soybean meal with fish meal is used to maximaze and increase the utilization of 70% tea waste, because soybean meal with fish meal contain the most balanced amino acid comparing with others feed component. The Experiment conducted in Small Ruminant Laboratory, Department of Animal Production Science, Faculty on Animal Science, Bogor Agricultural University, from November 2003 until January 2004. 20 Local Lamb with average body weight 20.87±1.8 kg were observed. The experiment design used Completely Randomized Design with five treatments and four replications. The treatments that were given are R1 (10% soybean meal, 0% fish meal), R2 (7.5% soybean meal, 2.5% fish meal), R3 (5% soybean meal, 5% fish meal), R4 (2.5% soybean meal, 7.5% fish meal), R5 (0% soybean meal, 10% fish meal). Data were analysed with ANOVA and followed by doubel Duncan (Steel and Torrie, 1993). The result of this research showed that treatments was not a significantly different affected on feed consumption based on dry matter, average weight gain, feed conversion and Income Over Feed Cost. The average of feed consumption based on dry matter was 978.42±16.52; 999.84±25.00; 1013.21±10.39; 1013.07±15.84; 1010.25±18.47 gram/ekor/hari, average weight gain was 81.35±27.01; 87.30±29.67; 99.21±27.87; 117.06±11.90; 97.22±20.87 gram/ekor/hari, average of feed conversion was 12.97±3.91; 12.89±5.74; 10.85±3.15; 8.71±0.87; 10.74±2.19 gram/ekor/hari. It is concluded that all treatments shown a good substitution 2.5% of soybean meal with 7.5% fish meal is tend to the best of all treatment, because have good feed consumption, average weight gain, feed conversion and Income O ver Feed Cost.
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Judul: Formulasi Algoritme Operasi Grup Jacobian Kurva Hyperelliptic ...
Abstrak: Dalam geometri aljabar, kurva hyperelliptic merupakan bentuk umum dari kurva elliptic. Kurva ini apabila dikenakan pada suatu lapangan berhingga akan membentuk suatu grup siklik. Pada kriptografi, khususnya enkripsi kunci publik, grup siklik yang dibangkitkan oleh kurva elliptic sudah banyak diteliti. Bahkan untuk kurva ini sudah memiliki standar oleh National Institute of Standard and Technology (NIST) Amerika. Sedangkan, untuk grup yang dibangkitkan oleh kurva hyperelliptic masih memiliki kekurangan dalam hal komputasinya. Tujuan dari penelitian ini adalah mengkonstruksi suatu lapangan berhingga pada , memilih kurva hyperelliptic atas lapangan hingga yang memenuhi kriteria keamanan untuk kriptografi, dan membuat formulasi operasi grup kurva hyperelliptic menggunakan algoritme Cantor. Dalam merekonstruksi lapangan hingga, terlebih dahulu tentukan dimensi dari lapangan hingga tersebut dan polinomial tak-teruraikan. Kemudian dipilih kurva hyperelliptic atas lapangan tersebut. Pada penelitian ini, kurva yang dipilih adalah = + + dengan lapangan hingga . Berdasarkan kurva yang dipilih, akan dibentuk suatu operasi grup dengan menggunakan algoritme Cantor, sehingga menjadi lebih aritmatik. Eksplorasi kurva hiperelliptic dilakukan untuk mengetahui keamanan dari kurva yang dipilih. Dengan menyusun algoritme operasi grup dari kurva yang dipilih, diperoleh perhitungan yang lebih aritmatik dan dapat diimplementasikan pada kriptografi kunci publik. Dari segi keamanan kurva telah memenuhi standar sehingga tahan terhadap serangan-serangan seperti Poligh-Hellman, Polard- , ataupun Frey-Ruck secara teorema.
Keyword: algoritme Cantor, kriptografi, kunci publik, kurva hyperelliptic, operasi grup