Judul: Performa Benih Ikan Nila yang Diberi Pakan Mengandung Hormon Pertumbuhan Rekombinan dengan Metode Penyiapan Berbeda
Abstrak: This research was conducted to evaluate the influence of rElGH in the form of the bacterium Escherichia coli intact and contains whole culturing medium, E.coli containing rElGH without culture medium, and protein total of lysozymelysated E. coli and mixed with feedstuffs before it made into pellet (repeleting) on red Nile tilapia juvenile. The research consisted of 3 treatments by different preparation of rElGH at a dose of 3 mg/kg diet, and one control. Each treatment was repeated three times. The control diet and rElGH was firstly coated by chicken egg yolks,and then mixed with diet by repelleting. Fish were reared for 6 weeks and fed diet containing rElGH by 3 times at day 1, 4 and 7 of the first week, 10% of fish body weight. The result showed that feeding fish by diet containing lysozyme-lysated rElGH generated higher growth, biomass and specific growth rate (SGR) of length and body weight compared with the control. Increment of body weight, biomass and SGR of length and body weight were 8.30%, 7,39% 4.20% and 4,92% higher compared to the control, respectively. Thus, feeding fish with diet containing the lysated rElGH is an effective method to increase growth of red Nile tilapia juvenile.
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Judul: Kinerja Pertumbuhan Ikan Nila Yang Diberi Pakan Dengan Kadar Protein Berbeda Dan Diperkaya Hormon Pertumbuhan Rekombinan Ikan Kerapu Kertang
Abstrak: Komponen biaya produksi terbesar dalam budidaya ikan adalah pakan. Penggunaan pakan berprotein rendah yang relatif murah umumnya berdampak pada terhambatnya laju pertumbuhan ikan. Penambahan hormon pertumbuhan rekombinan ikan kerapu kertang (rElGH) pada pakan berkadar protein rendah diharapkan dapat menanggulangi terhambatnya pertumbuhan ikan sehingga produktivitas budidaya meningkat. Penelitian ini bertujuan mengevaluasi kinerja pertumbuhan ikan nila yang diberi rElGH melalui pakan dengan kadar protein berbeda. Benih ikan nila sebanyak 25 ekor per perlakuan dipelihara selama 50 hari dalam hapa berukuran 2x1x1 m3 yang dipasang dalam kolam beton ukuran 20x10x1 m3. Ikan diberi pakan secara at satiation dengan frekuensi 3 kali sehari. Pakan mengandung hormon pertumbuhan rekombinan diberikan 2 kali per minggu pada hari Senin dan Kamis. Bobot pakan harian ditimbang untuk menentukan nilai konversi pakan. Hasil penelitian menunjukkan pengaruh rElGH yang signifikan (p<0,05) terhadap peningkatan biomassa, bobot rerata, laju pertumbuhan harian, dan konversi pakan. Tidak ada pengaruh signifikan (p>0,05) dari rElGH, kadar protein pakan, maupun interaksi antara keduanya terhadap kelangsungan hidup semua perlakuan dan kontrol. Kinerja pertumbuhan perlakuan pakan diperkaya rElGH dengan pakan kadar protein 20% dan 15% tidak berbeda nyata (p>0,05). Berdasarkan analisis ekonomi, pakan yang paling efisien adalah pakan diperkaya rElGH dengan kadar protein 15%.
Keyword: Oreochromis niloticus, rElGH, protein, pakan, pertumbuhan

Judul: Klasifikasi Sidik Jari Menggunakan Support Vector Machine Dengan Feature Berbasis Minutiae Menggunakan Metode Region
Abstrak: Manual fingerprint classification proceeds by carefully inspecting the geometric characteristics of major ridge curves in a fingerprint image. This research proposed an automatic approach of identifying the geometric characteristics of ridges based on minutiae position and angle. Position and angle of minutiae are analyzed using region method. Region was used to discretize the number of minutiae. Positions of minutiae in a region give information about its relation to another region. Angles of minutiae indicate the ridge flow direction. Support vector machine, a binary classifier, is used to classify the fingerprint based on those characteristics. In this research, the classes are left loop, right loop, whorl, arch and tented arch. This research used 2695 fingerprint images from NIST. Classification performance is measured using 3-fold cross validation method. This research achieved 79.7 % accuracy. As we only used local features in this research, further research needs to be conducted especially to investigate global features.
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