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 Kepemimpinan Desa dalam Perubahan Struktural Masyarakat Pedesaan
Abstrak: Aspek aspek pokok perrnasalahan penelitian ,meliputi:(1) Pengaruh peranan kepeniimpinan Kepaia Oesa terhadap peranan kepemimpinan pemimpin masyarakat dan pengaruh peranan lcepemimpinan masyarakat terhadap perubahan peranan anggota masyaraltat dalam berbagai aspek kelembagaan serta perubahan status sosial ekonomi anggota masyarakat , (2)Peranan managerial Kepala Desa dan aktivitas peranan pemimpin masyarakat, jarak sosial dan illt egrasisosial Kepa1,a Desa dengan p~amimpin masyaraltat dan pemimpin masyaraltat dengan ailggota masyarakat , (3)Pengaruh faktor kondisi masyarakat; faktor ekstern desa dan kemampuan individual (peribadi) masing masing terhadap peranan kepemimpinan Kepala Desa, terhadap peranan ltepemimpinan pemirnpin masyarakat dan terhada perubahan peranan dan perubahan status sosial ekonomi anggota masyarakat .
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