Judul: Peningkatan Kualitas Warna Ikan Rainbow Kurumoi (Melanotaenia sp.) melalui Penambahan Tepung Udang Rebon pada Pelet Komersial
Abstrak: Perkembangan ikan hias di Indonesia mengalami kemajuan yang terus meningkat, terutama ikan hias air tawar asli Indonesia. Warna sebagai nilai estetika ikan hias akan mempengaruhi nilai ekonomisnya, maka warna harus dapat ditingkatkan dan dipertahankan kualitasnya salah satunya melalui rekayasa nutrisi pakan. Warna pada ikan disebabkan oleh adanya sel pigmen atau Chromatophore yang terdapat dalam dermis pada sisik, di luar maupun di bawah sisik. Warna merah atau kuning merupakan warna yang banyak mendominasi ikan hias. Komponen utama pembentuk pigmen merah dan kuning ini adalah pigmen karotenoid. Astaxanthin merupakan molekul karotenoid yang dominan terdapat pada ikan. Penambahan sumber peningkat warna dalam pakan ikan akan mengakibatkan adanya peningkatan pigmen warna pada tubuh ikan tersebut, minimal ikan mampu mempertahankan pigmen warna pada tubuhnya selama masa pemeliharaan. Salah satu contoh bahan baku yang mengandung astaxanthin adalah udang rebon.
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Judul: Kinerja Produksi Ikan Rainbow Kurumoi Melanotaenia parva pada Sistem Resirkulasi dengan Filter Cangkang Kerang Simping, Kerang Darah, dan Kerang Hijau
Abstrak: Rinbow kurumoi fish is an Indonesian ornamental fish with high economic value, but its numbers in the nature decreases due to habitat destruction. It is necessary to increase production through aquaculture with environmental aprroach. Mussel shells are known can improve water quality. Mussel shells are varying types, so it needs further analysis of mussel shells used. The aim of this study was to analyze the type of mussel shells that the best among simping shells, cockle shells and green mussel shells to increase rainbow kurumoi fish production. Rainbow kurumoi fish used in this research had length 2.04±0.25cm/fish and weight 0.13± 0.14g/fish. Survival rate percentage was not significantly different among treatments. Each of length, weight, and specific growth rates was significantly different as compared to the control, but it was not prefail for different treatments. The result of this research showed that the shell could fix water quality so that the growth of rainbow kurumoi fish could be improved, but it was not really different as compared to all kinds of shell such as simping shell, blood shell and green mussel shell.
Keyword: Bogor Agricultural University (IPB), water quality, shell, rainbow kurumoi fish, growth,

Judul: The Exploration of Discrete Logarithm over Finite Field GF(3m)
Abstrak: The security of many public~key algorithms is based on the problem of finding discrete logarithms. The generalized discrete logarithm problem is the following: given a finite cyclic group G of order n, a generator a of G, and an element fl E G, find the integer x, 0 ~ x ~ n - 1, such that 0: = fl. Algorithm for discrete logarithm problem focused on Menezes et al. (1997) that consist of exhaustive search algorithm, the baby-step giant-step algorithm, Pollard's rho algorithm, Pohlig-Hellman algorithm, and index-calculus algorithm. These algorithms are explorated to be used in discrete logarithm problem over finite field GF(3m ). The exploration also produces some algorithms, i.e. naif negative algorithm, baby-step mother-step algorithm, baby-step mother free-step algorithm, and baby-step free-step algorithm. All algorithms implemented using Maple 11. The Pohlig-Hellman and baby-step giant-step algorithms are efficient enough to be used in discrete logarithm problem over finite field GF(3m ) for m < 20.
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