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All Journal Jurnal Akuakultur Indonesia Jurnal Kajian Bali
J. Subagja
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Milt-Egg Ratio in Artificial Fertilization of Pangasiid Catfish Injected by Gonadotropin Releasing Hormone-Analog (GnRH-a) and Domperidone Mixture Subagja, J.; Sularto, .; Slembrouck, J.
Jurnal Akuakultur Indonesia Vol. 2 No. 2 (2003): Jurnal Akuakultur Indonesia
Publisher : Indonesian Society of Scientific Aquaculture (ISSA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (353.9 KB) | DOI: 10.19027/jai.2.55-59

Abstract

Study on the level of gonadotropin hormone treatments combined with latency time to induce ovulation in Pangasius djambal was conducted in the Research Instalation of Germ Plasm, Cijeruk, Bogor. This study was carried out to investigate the effect of GnRH-a and domperidone mixture on the milt production and fertilization rates of Pangasius djambal, and to determine the optimal milt-egg ratio required for artificial fertilization. Different doses of hormone i.e: 0,3; 0,5 and 0,7 ml kg"1 body weight combined with latency time of 12, 24 and 48 h after inducing hormone were applied to increase milt-production. Milt dilution was 10"1, 10~2, 10"3, 10"4, 10"5, 10"6 and 10"7and evaluated for hatching rate and normality of larvae. The results showed that mean milt production was 4,3 ml/kg body weight, and there was interaction between hormone dose of 0,5 ml/kg of body weight and latency time 12 and 24 h that giving hatching rate of 77 to 83% ( p
Peranan Awig-awig Desa Adat dalam Konservasi Jalak Bali di Kepulauan Nusa Penida F.X. Sudaryanto; S. Pudyatmoko; J. Subagja; T.S. Djohan
Jurnal Kajian Bali (Journal of Bali Studies) Vol. 9 No. 1 (2019): WACANA KRITIS BUDAYA BALI
Publisher : Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JKB.2019.v09.i01.p11

Abstract

Bali Starling (Leucopsar rothschildi Stresemann, 1912) is an endemic bird in Bali, which is categorized as critical (Critically endangered). Starting in 2006 Bali starling conservation efforts were also carried out in the Nusa Penida Islands. This study aims to study contribution of the customary village regulation (awig-awig) to the success of the conservation of Bali Starling in the Nusa Penida Islands. Methods used included calculation of the Bali starling population directly with concentrated methods and the awig-awig implementation in the community obtained using AHP (Analytical Hierarchy Process). Results of the study showed that the population of Bali Starling in 2006 was 49, while in 2015 there were 66 individuals. Awig-awig has been the most important alternative to protect Bali starling. The conclusion of this study is that the Bali Starling population is increasing, and the Nusa Penida Islands community has a perception, and good participation in the awig-awig who protect the Bali Starling.
Co-Authors . Sularto F.X. Sudaryanto J. Slembrouck S. Pudyatmoko T.S. Djohan