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All Journal Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology)
Rudhy Gustiano
Balai Riset Perikanan Budidaya Air Tawar (BRPBAT)
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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REPRODUKSI IKAN NILA (Oreochromis nilotkm) SELEKSI DAN NON SELEKSI DENGAN PEMIJAHAN BUATAN: KARAKTERINDUK, TELUR, EMBRIODAN BENIH [Reproduction of selected and non selected nile tilapia (Oreochromis niloticm) with artificial induced breeding: character of broodstoek, egg, embryo, and larvae] Yohanna R. Widyastuti; Jojo Subagja; Rudhy Gustiano
Jurnal Iktiologi Indonesia Vol 8 No 1 (2008): Juni 2008
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v8i1.282

Abstract

Selection program is one alternative to control and improve growth performance. It is well known that decreasing growth rate has a correlation to the early maturation of the brood stocks. Objective of the present study was to elaborate the information of bioreproduction parameters of selected tilapia brood stocks coming from selective breeding on the growth improvement. Three groups of brood stock were used in this study defining as the first generation of selected brood stock (01) and the second generation (02) and farmer’s tilapia (M). Each group of brood stock has 5 pair brood stocks as replications. Hormone injection was given for artificial spawning. Eggs were then incubated in the jars equipped with recirculation system. Larvae were transferred to aquaria for growth observation. Results showed that artificial spawning could be done on tilapia using hCG injection as priming prior to ovaprim. Although there were no significantly different (P > 0.05) in egg diameters, the eggs of selected brood stock were still slightly bigger than non selected brood stock. Larvae of the second generation of selected brood stock has better growth rate than the first generation and non-selected one.
PERTAMBAHAN BIOMASSA IKAN NILA (Oreochromis niloticus) SELEKSI BAN NON SELEKSI DALAM KERAMBA JARING APUNG DI WADUK CIRATA DAN DANAU LIDO [Growth of selected and non selected Oreochromis niloticus in floating net cages in Grata Reservoir and Lido Lake] Kusdiarti Kusdiarti; Ani Widiyati; Winarlin Winarlin; Rudhy Gustiano
Jurnal Iktiologi Indonesia Vol 8 No 1 (2008): Juni 2008
Publisher : Masyarakat Iktiologi Indonesia (Indonesian Ichthyological Society)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32491/jii.v8i1.283

Abstract

The objective of this study was to evaluate the result of selection program by comparing the growth of selected and non-selected fish. The study was carried out in floating net cages in Cirata Reservoir and Lido Lake, Each group of the examined fish used four cages 2x2x2m3 sized with densities of 300 fish in Cirata Reservoir and 225 fish in Lido Lake. Fish was fed 5% body weight a day with commercial pellet. Growth was observed by measuring the total biomass of every cage per three weeks. Results showed that selected fish has slightly bigger (26.0 ± 1.63) than non-selected one (23.0 ± 2.45) in Cirata Reservoir. For survival rate, selected fish has better performance (92 4 ± 0.01) than the non selected one (84,4 ± 0.05) in floating net cages in the Lido Lake (P < 0.01).
Co-Authors Ani Widiyati Jojo Subagja Kusdiarti Kusdiarti Winarlin Winarlin Yohanna R. Widyastuti