Judul: Provision of Commercial Probiotics for Growth and Vitality of White Shrimp which are Maintained at Different Stocking Densities
Abstrak: Udang vaname (Litopenaeus vannamei) merupakan salah satu komoditas budidaya yang dapat dibudidayakan melalui sistem intensif atau dengan kepadatan yang tinggi. Terdapat tiga sistem padat tebar yaitu ekstensif, semi- intensif dan intensif. Penelitian ini bertujuan untuk mengevaluasi efektivitas pemberian probiotik komersial terhadap kinerja pertumbuhan dan vitalitas udang vaname yang dipelihara dengan padat tebar berbeda. Perlakuan yang diberikan pada penelitian ini adalah (A) padat tebar 556 ekor/m3 + pemberian probiotik (Pro-W 200 g/ha dan Pro-2 1 g/kg), (B) padat tebar 278 ekor/m3 + pemberian probiotik (Pro-W 200 g/ha dan Pro-2 1 g/kg), (C) padat tebar 139 ekor/m3 + pemberian probiotik (Pro-W 200 g/ha dan Pro-2 1 g/k), (K) padat tebar 556 ekor/m3 + tanpa pemberian probiotik. Hasil penelitian menunjukkan bahwa kinerja pertumbuhan (kelangsungan hidup,LPH dan RKP) udang vaname dengan pemberian probiotik lebih baik dan berbeda nyata (P<0.05) dibandingkan perlakuan tanpa pemberian probiotik. Efek probiotik komersial dalam pemeliharaan udang vaname dengan padat tebar tertinggi (556 ekor/m3) menunjukkan kinerja pertumbuhan terbaik dan vitalitas udang pada kepadatan tinggi dapat dipertahankan, White shrimp (Litopenaeus vannamei) is one of the cultivated commodities that can be cultivated through an intensive system or at high density. There are three stocking density systems, namely extensive, semi-intensive and intensive. This study aims to evaluate the effectiveness of commercial probiotics on the growth performance and vitality of white shrimp reared with different stocking densities. The treatments given in this study were (A) stocking density of 556 fish/m3 + provision of probiotics (Pro-W 200 g/ha and Pro-2 1 g/kg), (B) stocking density of 278 fish/m3 + provision of probiotics ( Pro-W 200 g/ha and Pro-2 1 g/kg), (C) stocking density 139 fish/m3 + provision of probiotics (Pro-W 200 g/ha and Pro-2 1 g/k), (K) stocking density 556 fish/m3 + without giving probiotics. The results showed that the growth performance (survival rate, LPH and RKP) of white shrimp with the provision of probiotics was better and significantly different (P<0.05) than the treatment without probiotics. The effect of commercial probiotics in the maintenance of white shrimp with the highest stocking density (556 fish/m3) shows the best growth performance and the vitality of shrimp at high densities can be maintained
Keyword: Litopenaeus vannamei, probiotics, Vibrio sp

Judul: Performa Pertumbuhan dan Vitalitas  Udang Vaname yang Diberi Dosis dan Genus Probiotik Berbeda
Abstrak: Penambahan probiotik pada pakan merupakan salah satu upaya yang dapat dilakukan untuk meningkatkan performa pertumbuhan udang. Penelitian ini bertujuan mengevaluasi pemberian probiotik Bacillus cereus BR2 dan probiotik Staphylococcus lentus L1k yang diberikan melalui pakan dengan dosis berbeda terhadap pertumbuhan dan uji vitalitas udang vaname (Litopenaeus vannamei). Hewan uji memiliki bobot rata-rata 0,19±0,02 g. Penelitian terdiri dari lima perlakuan dengan empat kali ulangan. Perlakuan uji meliputi A (penambahan pakan dengan probiotik BR2 kepadatan 103 CFU ml-1; 1% v/w), B (penambahan pakan dengan probiotik BR2 kepadatan 106 CFU ml-1; 1% v/w), C (penambahan pakan dengan probiotik L1k kepadatan 103 CFU ml-1; 1% v/w), D (penambahan pakan dengan probiotik L1k kepadatan 106 CFU ml-1; 1% v/w), dan kontrol (tanpa penambahan probiotik). Penelitian dilakukan selama 50 hari dan dilakukan sampling setiap 10 hari sekali. Hasil dari penelitian diperoleh nilai pada parameter Survival Rate (SR), Pertambahan Bobot Mutlak (PBM), Laju Pertumbuhan Harian (LPH), Rasio Konversi Pakan (RKP), dan Survival Rate (SR) saat uji respons stres pada perlakuan penambahan probiotik berbeda nyata (P<0,05) terhadap kontrol. Pemberian probiotik BR2 dan L1k melalui pakan dapat meningkatkan kinerja pertumbuhan dan vitalitas udang dengan hasil terbaik pada perlakuan L1k dosis 103 CFUml-1; 1% v/w., The addition of probiotics to feed is one of the efforts that can be made to improve the quality of shrimp. This study aimed to evaluate the administration of probiotics Bacillus cereus BR2 and probiotic Staphylococcus lentus L1k administered through feed with different doses against the growth and vitality test of vaname shrimp (Litopenaeus vannamei). Test animals have an average weight of 0,19±0,02 g. The study consisted of five treatments with four replication. The test treatments were A (addition of feed with probiotic BR2 density 103 CFU ml1 ; 1% v/w), B (addition of feed with probiotic BR2 density 106 CFU ml-1; 1% v/w), C (addition of feed with probiotic L1k density 103 CFU ml-1; 1% v/w), D (addition of feed with probiotic L1k density 106 CFU ml-1; 1% v/w), and control (without the addition of probiotics). The research was conducted for 50 days and sampling every 10 days. Results from the study obtained values on parameters Survival Rate (SR), Absolute Growth Weight (AGW), Specific Growth Rate (SGR), Feed Conversion Rate (FCR), and Survival Rate (SR) during stress response tests on probiotic addition treatments significanly different (P<0,05) to control. Administering probiotics BR2 and L1k through feed can improve the growth performance and viability of shrimp with the best results at L1k treatment dose 103 CFUml-1; 1% v/w).
Keyword: performance growth, probiotics, shrimp vaname, vitality

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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