Judul: Effectiveness of Commercial Astaxanthin Supplementation in Feed on the Growth Performance of Common Carp Cyprinus carpio
Abstrak: Ikan mas termasuk salah satu ikan dengan laju pertumbuhan yang cukup tinggi. Astaxanthin adalah antioksidan dari golongan karotenoid yang dapat mempengaruhi pertumbuhan ikan. Penelitian ini bertujuan mengevaluasi efektivitas suplementasi astaxanthin komersial pada pakan terhadap kinerja pertumbuhan ikan mas (Cyprinus carpio). Penelitian menggunakan empat perlakuan dan tiga ulangan, yaitu K (0 mg kg-1 pakan), L50 (50 mg kg-1 pakan), L100 (100 mg kg-1 pakan), dan L150 (150 mg kg-1 pakan). Ikan dipelihara dengan kepadatan 12 ekor per akuarium selama 60 hari. Pemberian pakan uji dilakukan secara at satiation dengan frekuensi sebanyak tiga kali sehari, yaitu pukul 08.00, 12.00, dan 16.00. Parameter yang diamati yaitu laju pertumbuhan spesifik, tingkat kelangsungan hidup, rasio konversi pakan, jumlah konsumsi pakan, retensi protein, retensi lemak, rasio efisiensi protein, dan feed cost per gain. Suplementasi astaxanthin komersial pada pakan menunjukkan kinerja pertumbuhan yang berbeda nyata (p<0,05) antar perlakuan. Kinerja pertumbuhan ikan mas (Cyprinus carpio) terbaik diperoleh pada pakan dengan penambahan astaxanthin komersial sebanyak 100 mg kg-1 pakan., Common carp is one of the fish with a fairly high growth rate. Astaxanthin is a carotenoid antioxidant which can affect fish growth. This study aims to evaluate the effectiveness of commercial astaxanthin supplementation in feed on the growth performance of common carp (Cyprinus carpio). The research used four treatments and three replications, namely K (0 mg kg-1 feed), L50 (50 mg kg-1 feed), L100 (100 mg kg-1 feed), and L150 (150 mg kg-1 feed). Fish were maintained at a density of 12 fish per aquarium for 60 days. The test feed was given at satiation with a frequency of three times a day, namely at 08.00, 12.00 and 16.00. The parameters observed were specific growth rate, survival rate, feed conversion ratio, amount of feed consumption, protein retention, fat retention, protein efficiency ratio, and feed cost per gain. Astaxanthin commercial supplementation in feed showed significantly different growth performance (p<0.05) between treatments. The best growth performance of common carp (Cyprinus carpio) was obtained with feed supplemented with 100 mg kg-1 of commercial astaxanthin.
Keyword: Astaxanthin, Growth, Common carp, Feed

Judul: Growth Performance Of Striped Catfish (Pangasius sp.) Fed With The Addition Of Astaxanthin
Abstrak: Penggunaan astaxantin pada pakan mempengaruhi kinerja produksi pertumbuhan ikan patin (Pangasius sp.). Penelitian ini bertujuan mengevaluasi penggunaan astaxantin pada pakan terhadap pertumbuhan ikan patin. Perlakuan dalam penelitian ini, menggunakan empat perlakuan (K, LP50, LP100, dan LP150) dan tiga ulangan dengan masing-masing dosis (0, 50, 100, dan 150 mg kg-1) yang diberikan pada ikan patin dengan rata rata bobot awal 7,16 ± 0,01 g sebanyak 15 ekor per akuarium dengan ukuran 90x45x45 cm dan ketinggian air 30 cm. Setelah masa pemeliharaan selama 60 hari, bobot biomassa akhir tertinggi diperoleh perlakuan LP100 sebesar 359,50±2,52 g sedangkan bobot biomassa terendah pada perlakuan kontrol sebesar 305,70±4,92 g. Hasil penelitian menunjukkan bahwa parameter kinerja pertumbuhan (biomassa akhir dan bobot individu akhir) pada ikan patin yang diberi astaxantin menunjukkan hasil yang berbeda nyata (p<0,05) terhadap ikan patin dengan perlakuan kontrol. Berdasarkan hasil dari penelitian ini penggunaan dosis terbaik terhadap penambahan astaxantin pada pakan yaitu 100 mg kg-1 pakan., The use of astaxanthin in feed affects the growth production performance of striped catfish (Pangasius sp.). This research aims to evaluate the use of astaxanthin in feed on the growth of catfish. The treatments in this study used four treatments (K, LP50, LP100, and LP150) and three replications with each dose (0, 50, 100, and 150 mg kg-1) given to catfish with an average initial weight 7,16 ± 0.01 g for 15 fish per aquarium with dimensions of 90x45x45 cm and a water level of 30 cm. After a maintenance period of 60 days, the highest final biomass weight was obtained by the LP100 treatment, amounting to 359.50 ± 2.52 g, while the lowest biomass weight in the control treatment was 305.70 ± 4.92 g. The results showed that the growth performance parameters (final biomass and final individual weight) in striped catfish treated with a dose of pink lucantin showed significantly different results (p<0.05) compared to striped catfish treated with the control treatment. Based on the results of this research, the best dose to use for adding pink lucantin to feed is 100 mg kg-1 feed.
Keyword: astaxanthin, feed, growth, striped catfish

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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