Judul: Artificial induced breeding and triploidy in the asian catfish (Clarias Batrachus L.)
Abstrak: Triploid Clarias batrachus were produced by cold shocking eggs from 27OC to 5OC for 20 minutes. The triploidy technique was validated at an early stage by means of gynogenesis, and in juvenile fish by red blood cells (RBC) and DNA size and volume measurement by flow cytometer as indirect and direct method respectively. The effect of ploidy on growth performance was checked by feeding juvenile and adult fish. This work was conducted in three steps.
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Judul: Induction of Ovulation and Spawning in Catfish (Pangasianodon hypopthalmus) with Hormonal Manipulation
Abstrak: Striped catfish is a species introduced from Thailand, has economically important because the meat is preferred by Indonesian society. Fish farming is growing rapidly, thus increasing the need for seed. Spawning of these fish can only be done by artificial spawning by stripping, which can lead to decreased quality of broodstock, gametes and seeds. The purposeof this study is to hormonally induce ovulation and spawning of seminatural for catfish and evaluate the effectiveness and efficiency of the use of hormone LHRH, antidopamin (AD), aromatase inhibitors (AI), prostaglandin(PGF2a), oxytocin and ovaprim to induce ovulation and spawning on this fish. Mature fish (1.5 - 3.5 kg per fish), was treated by hormonal injection with: LHRHa + AI (Spawnprime 1); AD + AI (Spawnprime 2); LHRHa + AD + AI + PGF2α (Spawnprime 3); LHRHa + AD + AI + PGF2α + oxytocin (Spawnprime 4); LHRHa + AD + oxytocin (Spawnprime 5); LHRHa + AD + PGF2α (spawnprime 6), AI + oxytocin (spawnprime 7), AI + PGF2α (spawnprime 8); ovaprim, and NaCl (0.90%). The results showed that spawnprime has faster latency period (6-8 hours) compared ovaprim (12 hours). spawnprime 1, 2, 5, and 6 can be spawned artificially by stipping, while spawnprime 3,4,7 and 8 naturally. The best results were shown by spawnprime 4 which causes ovulation rate of 100%. The latency period in spawnprime 4 is 6 hours and 33 minutes, the amount of egg in ovulation time is 195.000 ± 41079.19 eggs, the fertilization rate is 91.87% ± 3.03, the hatching rate is 92.33% ± 5.86, the survival rate of larvae 93.91% ± 2.96, diameter egg is 1.05 ± 0.04 mm and concentrations of estradiol 0.7 pg / ml. spawnprime can induced for ovulation and ntural spawning (without stripping) on stripped catfish. Spawnprime can be used as an alternative in the artificial propagation.
Keyword: catfish (Pangasianodon hypopthalmus), ovaprim, spawnprime

Judul: Peranan hutan dalam kehidupan rumah tangga masyarakat desa hutan (Studi kasus kampung Nyungcung, Desa Malasari, Kecamatan Nanggung, Kabupaten Bogor, Jawa Barat)
Abstrak: Hutan merupakan sumberdaya alam yang sangat berperan dalam kehidupan manusia. Hutan memiliki hubungan yang sangat erat dengan masyarakat yang tinggal disekitar hutan. Bagi masyarakat yang tinggal di sekitar kawasan hutan, hutan merupakan tempat tinggal dan sebagai tempat untuk memenuhi keperluan sehari-hari. Desa Malasari merupakan salah satu Desa yang berada dikawasan Ekosistem Taman Nasional Gunung Halimun. Sehubungan dengan dikeluarkannya Surat Keputusan Menteri Kehutanan RI Nomor 175Kpts- IZ tahun 2003 tentang perluasan Taman Nasional Gunung Halimun-Salak, maka Desa Malasari terletak di areal perluasan tersebut dan menjadi kawasan Taman Nasional Gunung Halimun. Sejak tahun 1992 Taman Nasional Gunung Halimun mengambil alih pengelolaan hutan dam di Desa Malasari, dan sebesar 37,37 persen masuk dalam areal konservasi Taman Nasional Gunung Halimun.
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