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: Manipulasi Hormonal Pada Pematangan Gonad Ikan Patin Siam Pangasianodon hypopthalmus.
Abstrak: Pangasianodon hypophthalmus or stripped catfish is a potential freshwater aquaculture fish commodity as filet because has the good taste, soft texture, and contain good nutrition. Food and Agriculture Organization reported at the end of June 2011 the amount of stripped catfish filet absorbed by the importing countries recorded are, United States approximately 92,000 tonnes, Europe 188, 100 tonnes, India 1,500 tons and Philippines 7,200 tons. This opportunity not be utilized by Indonesian exporters because until the end of 2010 the production of stripped catfish filet is still low, around 104, 975 tonnes. Exploring the cause of low production stripped catfish filet it is not maximal of growing up because the limited availability of seeds for growing. This happen cause maturation of gonad and spawning from stripped catfish parents only in rainy season. This research was carried out to determine the role between PMSG and Antidopamin used as a combination in gonads rematuration of Pangasianodon hypophthalmus. The lasted for 60 days, sampling was done every 14 days involve : (1) specific growth rate, by weighing each individual in all treatments, (2) analysis of the hormone estradiol - 17 β, by observing the blood plasma using the ELISA method, (3) blood glucose levels by observing the blood plasma method (4) hepatosomatic index, by weighing using digital scales 2 digits (5) gonadosomatic index, by weighing using digital scales 2 digits (6) histology of the gonads, making histological preparations method (7) egg diameter with observation and photography using a binocular Olympus mikroskup type SZX16 100 times magnification lens (8) percentage of gonads fish mature, by cannulation using a catheter on day 28 and 42, and (9). Water quality observed every 7 days. This research uses a factorial design consist 3 PMSG dose level and 2 AD dose level. Doses formulation that is composed as follows : 1.P1A0 (PMSG 10 IU / kg fish + AD 0 mg / kg fish),2.P2A0 (PMSG 20 IU / kg fish +AD 0 mg/ kg fish), 3.P0A1 (PMSG 0 IU / kg fish + AD 0.01 mg / kg fish), 4.P1A1 (PMSG 10 IU/ kg fish + AD 0.01 mg/ kg fish), 5. P2A1 (PMSG 20 IU / kg fish + AD 0.01 mg/ kg fish), and 6. P0A0 (Nacl 0,09%) as control. Each combination of dose and control were tested to 7 fishes. Data obtained were processed with Minitab 16. followed by Tukey test. In this research showed that the test fishhes had significantly gonad development are injected with formulations containing PMSG, or combinations between PMSG and Antidopamin namely: P1A0, P2A0, P1A1, and P2A1. This fact shown from the increase in specific growth rate, hormone estradiol - 17β, hepatosomatik index, gonadosomatik index, gonad development and eggs diameter and percentage of gonads mature. Result of the research that has been done that the best dose combination for rematurasi process of Pangasianodon hypophthalmus is P1A1 (PMSG 10 IU / kg weight of fish AD + 0.01 mg / kg weight of fish).
Keyword: Rematurasi, Pangasianodon hypopthalmus, Pregnant Mare’s Serum Gonadotropin, Antidopamin.

Judul: Kajian Karakteristik dan Persepsi Masyarakat terhadap Objek Warisan Budaya di Kota Yogyakarta
Abstrak: Warisan budaya menjadi penting dalam menghidupkan kembali sejarah kota yang pernah ada pada sumbu filosofi. Sumbu filosofi sebagai dasar dalam identifikasi karakteristik dari objek warisan budaya, yaitu Tugu, Malioboro, Kilometer Nol, dan Alun-alun Selatan, serta lingkungannya. Sektor pariwisata juga terus mendorong Yogyakarta sebagai objek destinasi wisata favorit, khususnya wisata budaya di perkotaan. Alun-alun Selatan dan lingkungannya berada dalam dinding (njeron beteng) memiliki karakter unik. Keberadaan dinding sudah tidak lagi berperan sebagai pertahanan fisik dalam menghadapi musuh. Kondisi saat ini, meskipun dinding mengalami kerusakan tetapi berfungsi sebagai pembatas wilayah yang memiliki perbedaan karakteristik dan menjaga sendi-sendi kehidupan wilayah Kraton. Karakter unik njeron beteng terletak pada arsitektur dan toponim. Kondisi bangunan (dalem) priyayi/bangsawan, kampung pribumi, dan kampung berbasis pesantren masih mengelompok, namun beberapa di antaranya telah mengalami perubahan. Toponim yang ada saat ini adalah penamaan jalan menggunakan nama kampung berdasarkan profesi yang ada sejak masa pemerintahan Sri Sultan Hamengku Buwana I. Hubungan tempat dengan psikologi manusia khususnya pada objek warisan budaya masih belum mendapat perhatian. Pentingnya persepsi masyarakat dan wisatawan merupakan bentuk partisipasinya dalam menanggapi dan memberi penilaian terhadap objek warisan. Variabel warisan budaya memiliki nilai paling kuat, sedangkan variabel ketergantungan tempat memiliki nilai paling lemah. Nilai semua responden, 8.33% sangat setuju dan 91.67% setuju pada warisan budaya; dan 8.33% setuju, 83.33% ragu-ragu, dan 8.33% tidak setuju pada ketergantungan tempat. Malioboro memiliki nilai paling kuat sebesar 3.61 dan Kilometer Nol memiliki nilai paling lemah sebesar 3.18. Seluruh objek warisan tersebut mengindikasikan nilai rata-rata (median) tidak jauh berbeda. Persepsi antara masyarakat asli dan pendatang tidak ada perbedaan dalam menilai empat objek warisan dengan menggunakan uji beda Mann-Whitney U. Konsep place-making sebagai pertimbangan dalam merencanakan ruang publik di Kilometer Nol untuk meningkatkan variabel keterikatan tempat dan nilai kontinuitas, khususnya ketergantungan tempat. Kelompok bangunan kolonial Belanda di Kilometer Nol sudah ada keberadaannya sebagai aset berharga dan harus ditanamkan dimensi psikologi dan spiritual. Pemahaman tersebut juga berkaitan tentang sejarah kota yang tidak hanya membangun fisik saja namun juga melibatkan aspek bukan fisik. Konsep citra kota melalui identitas, struktur, dan makna sebagai pertimbangan dalam mengintegrasikan karakteristik dengan benang merah di sumbu filosofi. Karakter fisik diharapkan dapat memberikan pengaruh terhadap aspek bukan fisik. Perlu koordinasi antara pemangku kepentingan dan partisipasi aktif dari masyarakat asli dan pendatang sebagai upaya dalam pelestarian warisan budaya.
Keyword: dimensi psikologi, elemen mental map, objek warisan, persepsi, ruang publik, warisan budaya