Judul: Evaluation of the Effectiveness of Commercial Probiotics on the Survival of Carp (Cyprinus carpio) in Tarpaulin Ponds
Abstrak: Probiotik sebagai suplemen tambahan pada pakan sudah umum digunakan pada proses budidaya perikanan. Probiotik merupakan kumpulan dari mikroba yang digunakan untuk meningkatkan kesehatan usus dan sistem kekebalan tubuh. Peneletian ini mengkaji efektivitas probiotik komersial terhadap kelangsungan hidup ikan mas (Cyprinus carpio) pada kolam terpal dengan air mengalir di daerah Situdaun, Bogor. Metode yang digunakan dalam pengaplikasian probiotik yaitu metode coating dengan parameter yang diukur yaitu : rata-rata bobot dan panjang ikan, total ikan yang hidup, Survival Rate (SR), Food Cenvertion Ratio (FCR), pertumbuhan laju mutlak, dan laju pertumbuhan harian. Pengumpulan data dilakukan dengan metode sampling yang dilakukan setiap hari. Hasil penelitian menunjukan perlakuan probiotik komersial lebih baik dibandingkan kontrol pada parameter : rata-rata bobot dan panjang ikan (51,711g , 14,23 cm), pertumbuhan laju mutlak (17,97 cm), Food Conversion Ratio (1,179), dan laju pertumbuhan harian (0,60 cm). Namun, terdapat parameter perlakuan probiotik komersial tidak lebih baik dibandingkan kontrol yaitu total ikan yang hidup (38 individu), dan Survival Rate (47,5 % ). Hasil dari penelitian ini menunjukan aplikasi probiotik komersial cukup efektif untuk budidaya ikan pada kolam terpal pada air mengalir., Probiotics as additional supplements in feed are commonly used in the fisheries cultivation process. Probiotics are a collection of microbes used to improve intestinal health and the immune system. This research examines the effectiveness of commercial probiotics on the survival of carp (Cyprinus carpio) using tarpaulin ponds in Situdaun, Bogor. The method used in the application of commercial probiotics is the coating method with the parameters measured, namely: average weight and length of fish, total fish alive, Survival Rate (SR), Food Conversion Ratio (FCR), absolute growth rate, and daily growth rate. Data collection was carried out using a sampling method that was carried out every day. The results showed that probiotic treatment was better than control in the following parameters: average weight and length of fish (51.711g, 14.23 cm), absolute growth rate (17.97 cm), Food Conversion Ratio (1.179), and daily growth rate (0.60 cm). However, there were parameters of commercial probiotic treatment that were not better than control, namely the total number of fish alive (38 individuals), and Survival Rate (47.5%). The results of this study indicate that commercial probiotic application is quite effective for fish farming in tarpaulin ponds in flowing water.
Keyword: survival rate, fish growth, food conversion ratio

Judul: Commercial Probiotic Supplementation on Biofloc System and Its Effects on Growth Performance and Health Status of Catfish (Clarias sp.) Fry
Abstrak: Teknologi bioflok diketahui dapat meningkatkan produktivitas budidaya dan probiotik Bacillus sp. dapat meningkatkan respons imun, menurunkan FCR, serta meningkatkan kualitas air budidaya ikan lele. Penelitian ini bertujuan mengevaluasi pengaruh suplementasi probiotik komersial pada sistem bioflok dalam meningkatkan kinerja pertumbuhan dan status kesehatan benih ikan lele (Clarias sp.). Penelitian menggunakan rancangan acak lengkap (RAL) dengan tiga perlakuan dan dua ulangan, yaitu ikan dipelihara tanpa aplikasi bioflok dan penambahan probiotik komersial (K), ikan dipelihara dengan aplikasi bioflok (BF), serta ikan dipelihara dengan aplikasi bioflok dan penambahan probiotik komersial 0,6 mL m-2 tiga hari sekali. Ikan lele yang digunakan memiliki panjang rata-rata 0,86±0,03 cm dan bobot rata-rata 0,0069±0,00 g dipelihara dengan padat tebar 2.500 ekor m-2 selama 21 hari. Parameter yang diamati yaitu laju pertumbuhan panjang harian, laju pertumbuhan bobot harian, relative percent survival, koefisien keragaman, rasio konversi pakan, kelimpahan bakteri total, eritrosit total, leukosit total, kadar hemoglobin, dan kadar hematokrit. Penambahan probiotik komersial dalam sistem bioflok mampu meningkatkan kinerja pertumbuhan dan status kesehatan benih ikan lele, ditunjukkan oleh nilai relative percent survival mencapai 52,35%, serta nilai gambaran darah yang lebih baik dibandingkan dengan dua perlakuan lainnya. Penambahan probiotik komersial pada sistem bioflok dapat diterapkan untuk meningkatkan produktivitas dan status kesehatan ikan lele., Biofloc technology is known to enhance aquaculture productivity, and the probiotic Bacillus sp. can improve immune response, reduce feed conversion ratio (FCR), and enhance water quality in catfish farming. This study aimed to evaluate the influence of commercial probiotic supplementation in a biofloc system on the growth performance and health status of catfish (Clarias sp.) juveniles. The study employed a completely randomized design (CRD) with three treatments and two replications: fish reared without biofloc and commercial probiotic supplementation (K), fish reared with biofloc application (BF), and fish reared with biofloc application and commercial probiotic supplementation at a rate of 0,6 mL m-2 every three days. The catfish used had an average length of 0,86±0,03 cm and an average weight of 0,0069±0,00 g, with a stocking density of 2.500 individuals m-2 for a duration of 21 days. The parameters observed were daily length growth rate, daily weight growth rate, relative percent survival, coefficient of variation, feed conversion ratio, total bacterial abundance, total erythrocytes, total leukocytes, hemoglobin level, and hematocrit level. The addition of commercial probiotics in the biofloc system improved the growth performance and health status of catfish juveniles, as indicated by a relative percent survival value of 52,35% and better blood profiles compared to the other two treatments. The addition of commercial probiotics in the biofloc system can be implemented to enhance the productivity and health status of catfish.
Keyword: biofloc, Clarias sp., growth, health status, probiotic

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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