Judul: The effectiveness of providing turmeric flour (Curcuma longa) through feed on cannibalism of catfish (Clarias gariepinus)
Abstrak: Ikan lele (Clarias gariepinus.) merupakan komoditas ikan air tawar yang banyak dikonsumsi oleh masyarakat Indonesia. Permintaan ikan lele oleh konsumen mengalami peningkatan setiap tahunnya, namun permintaan tersebut masih belum terpenuhi akibat produksi ikan lele yang menurun. Kematian ikan lele disebabkan oleh beberapa hal, salah satunya adalah kematian yang disebabkan oleh kanibalisme. Pengendalian kanibalisme dapat dilakukan dengan pendekatan hormonal menggunakan hormon estrogen alamiah. Kunyit merupakan salah satu tanaman yang mengandung fitoestrogen. Penelitian ini bertujuan untuk mengetahui efektivitas dosis penambahan tepung kunyit melalui pakan terhadap kejadian kanibalisme pada benih ikan lele. Penelitian terdiri atas tiga perlakuan dengan tiga pengulangan yang meliputi perlakuan kontrol (tanpa penambahan tepung kunyit), perlakuan penambahan tepung kunyit 15 gr dan 30 gr. Penelitian menggunakan benih ikan lele berukuran 6 cm dengan bobot 3 gram. Benih ikan lele dipelihara dengan padat tebar 300 ekor.m−2 di akuarium berukuran (50x35x40 cm) selama 30 hari masa pemeliharaan. Hasil penelitian menunjukkan bahwa penambahan tepung kunyit mampu menekan kanibalisme tipe-I dan tipe-II, serta dapat meningkatkan tingkat kelangsungan hidup dibandingkandengan perlakuan kontrol (p<0,05). Pada kinerja pertumbuhan tidak memberikan pengaruh yang berbeda nyata antara perlakuan penambahan tepung kunyit dan perlakuan kontrol., Catfish (Clarias gariepinus.) is a freshwater commodity that is widely consumed by the Indonesian people. Catfish demand by consumers to experience an increase every year, but the request has still not been fulfilled due to declining catfish production. The death of catfish is caused by several things, one of which is death caused by cannibalism. Cannibalism can be done with hormonal approaches using natural hormone estrogen. Turmeric is one of a plant that contain phytoestrogen. This study aims to determine the effectiveness of doses of turmeric flour through feed on cannibalism in catfish seeds. Research consists of three treatments with three repetitions that include control treatment (without addition of turmeric flour), treatment of adding 15 gr, and 30 gr. The study used catfish seed sizing 6 cm for 3 gr of weight. Catfish seeds are maintained by solid 300 tail.m−2 in aquarium (50x35x40 cm) for 30 days of maintenance. The result of research showed that the addition of turmeric flour was able to suppress type-I cannibalism and type-II cannibalism, with increasing survival rates compared to control treatment (p<0,05). In growth performance,it does not have a different effect between the treatment of adding turmeric flour and control treatments
Keyword: Kanibalisme, Ikan lele, Kunyit

Judul: The Study of Adding Antioxidant During Oil Refining Process of Catfish (Clarias gariepinus) Flouring Industry By Product.
Abstrak: Tujuan umum dari penelitian ini adalah untuk mempelajari penambahan antioksidan pada proses pemurnian minyak hasil samping penepungan ikan lele dumbo. Tujuan khususnya adalah 1) Mempelajari proses pemurnian minyak ikan lele, 2) Mempelajari pengaruh penambahan antioksidan terhadap sifat fisik (titik cair, viskositas, kejernihan, warna, dan aroma) dan sifat kimia (persentase asam lemak bebas, bilangan asam, bilangan peroksida, bilangan TBA, asam lemak, dan vitamin E) minyak ikan lele hasil pemurnian, 3) Mengkaji daya terima minyak ikan lele hasil pemurnian, 4) Mempelajari proses mikroenkapsulasi minyak ikan lele terbaik, 5) Menganalisis retensi asam lemak esensial setelah proses mikroenkapsulasi. Tahap penelitian meliputi penelitian pendahuluan dan penelitian utama. Penelitian pendahuluan bertujuan untuk mendapatkan rendemen minyak kasar serta karakterisasinya (sifat fisik dan kimia minyak ikan lele sebelum pemurnian). Berdasarkan penelitian pendahuluan dapat diketahui bahwa minyak ikan lele sebelum pemurnian memiliki sifat fisik sebagai berikut: titik cair sebesar 30.230C, viskositas 63.5 cP, kejernihan 211 NTU, berwarna kuning, aroma sangat amis. Selain itu, sifat kimianya adalah: asam lemak bebas 0.05%, bilangan asam 0.06 mgKOH/100 gram, bilangan peroksida 0.21 mgO2/100 gram, bilangan TBA 0.68 mg/kg, asam lemak palmitat (16:0) 16.4%, asam lemak oleat (18:1) 22.65%, asam lemak linoleat (18:2) 17.79%, asam lemak linolenat (18:3) 1.21%, EPA 0.57%, DHA 3.51%, vitamin E 9.15 IU.
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Judul: Sistem Informasi Geografis untuk Pola Aktivitas Manusia dengan Pemodelan Data Spatio-Temporal
Abstrak: The human activity in a given time period will shape its pattern. This research develops a spatiotemporal data model to support the prediction of human existence based on activity-pattern and also visualizes the activity locations in a GIS environment. This so-called mobility oriented spatiotemporal data model conceptualizes the spatial and temporal interaction of activity behaviour using the concept of mobility. In other words, activity patterns are conceptualized as a sequence of staying at or traveling between activity locations. The model can support the analysis and queries of activities from different perspectives, i.e. queries can be time-oriented, person-oriented, activity-oriented, and location-oriented. A prototype system based on the activity data modelling is implemented in MySQL 5.0.27 as DBMS with using PhpMyAdmin 2.9.1.1 software. Spatial database is developed with using software QuantumGIS and ArcView. The system could be accessed online through a web browser with MySQL as its database storage and Pmapper framework as the tools used in visualizing the activity locations.The information were provided in the form of activity attribute-data as the user requested and graphical-data (map) which contains information about its activity locations.
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