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PENGARUH INHIBITOR AROMATASE (IA) TERHADAP PERKEMBANGN OOSIT PADA IKAN MAS KOKI (Carassius auratus) Fajar Basuki; Muh Zairin Junior; Agus O . Sudradjat; Tuty L . Yusuf; Bambang Purwantara; Mozes R . Toelihere
Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Vol. 13 No. 2 (2006): Desember 2006
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (254.264 KB)

Abstract

Penelitian ini bertujuan untuk mengetahui dosis optimal Inhibitor Aromatase (IA) pada perkembangan oosit ikan mas koki. Dosis yang digunakan adalah k = kontrol (disuntik NaCl fisiologis), Pl = 2.5 mg/kg berat tubuh (b.t), P2 = 7.5 mg/kg b.t., dan P3 = 12.5 mg/kg b.t. Untuk mengetahui pengaruh IA terhadap perkembangan gonad diukur kandungan hormon estradiol-l7β dalam plasma darah dan level protein gonad mulai dari awal perlakukan kemudian setiap tujuh hari sekali, yaitu hari ke-7, ke-14, dan ke-21. Hasil penelitian menunjukkan bahwa, pada hari ke-7 hasil semua perlakuan P1, P2, P3 menunjukkan penurunan hormon estradiol- 17β diikuti penurunan level protein gonad, hasil analisis pengamatan histologi menunjukkan terjadi atresi pada sel gonad. Pada hari ke-14 kadar hormon estradiol-17β perlakuan menunjukkan terjadi peningkatan diikuti peningkatan level protein gonad. Pada hari ke-21 kadar hormon estradiol-17β perlakuan sudah sama dengan kadar hormon kontrol namun level protein gonad masih dibawah level protein gonad kontrol.Kata kunci: estradiol 17ß, perkembangan oosit, level protein gonad.
PERFORMA PRODUKSI UDANG VANAME (Litopenaeus vannamei) YANG DIBUDIDAYAKAN PADA TAMBAK SISTEM SEMI INTENSIF DENGAN APLIKASI PROBIOTIK Titik Susilowati; Vivi Endar Herawati; Fajar Basuki; Tristiana Yuniarti; Diana Rachmawati; Suminto Suminto
Pena Akuatika Jurnal Ilmiah Perikanan Dan Kelautan Vol 16, No 1 (2017): PENA AKUATIKA JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Fakultas Perikanan Universitas Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (116.561 KB) | DOI: 10.31941/penaakuatika.v16i1.522

Abstract

The aimed of this research to effect probiotics influented on the growth, survival rates, production, productivity and FCR and water quality condition of Pacific white shrimp L. vannamei in pond under semi intensif system. Six of pond compartments each sized 2,000 m2 were stocked with PL-12 at the density of 15 fries/m2. Two treatmens of probiotics application in pond were tested, there were A). 0 mg/L probiotic and B).1.5 mg/L fermentation of probiotic. Each treatment was done in three replicated. On treatment probiotic applied weekly to the ponds started on the first week before shrimp stocking until harvested, while in treatment B probiotic application was mixedwith feed pelled then it was given to the cultured shrimp in the ponds. Result of the research showed that final shrimp body weight in treatment B tend to be higher compared to the treatment A. Absolut shrimp growth-rate in treatment B: 20.727 ± 0.042 g and treatment A :15.7 ± 0.016 g, Shrimp survival rate treatment A 0.432±0.0003 and treatment B : 0.79±0.0145. Production-rate of shrimp in treatment A: 203.627±0.083 kg/2000 m2 and treatment B : 504.489 kg/200 m2. Productivity of shrimp in treatment A : 0.1 kg/m2/period of plants dan perlakuan B: 0.25 kg/m2/period of plants. FCR of shrimp in treatment A 1.79±0.005 and treatment B : 1.42±0.003. Probiotics used in treatment B resulted in the enchancement of water quality condition (total organic matter, nitrat) compared to the treatment A ( 0 probiotics). This condition presumably resulted the highest shrimp production in treatment A.Keywords : production, Pacific white shrimp, probiotics.