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Trijoko Trijoko
Laboratorium Ekologi dan Biosistematika Hewan, Fakultas Biologi, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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TITER EKDISON LOBSTER HIJAU PASIR (Panulirus homarus L.) PADA FASE PREMOLTING AKHIR Muhsinul Ihsan; Trijoko Trijoko; Nastiti Widjayanti
Scripta Biologica Vol 4, No 4 (2017)
Publisher : Fakultas Biologi | Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (699.237 KB) | DOI: 10.20884/1.sb.2017.4.4.643

Abstract

Spiny Lobster, Panulirus homarus, farming is very potential to be developed in Lombok Island, but physiological aspects such as nutrient needs and growth hormone, especially ecdysone titer, were little known. This research aimed to determine the ecdysone titer of Panulirus homarus during the last pre-molting phase. This study was conducted as a quasi-experiment with one group post-test design. The lobsters used in this experiment have the length of carapacs and the body weight of 1.5–2.0 cm and 4.33–5.77 g respectively. The lobster fed for 42 days with gel pellets three times a day before ecdysone titer measurement. The ecdysone hormone was then isolated from the second segment of the abdomen on the basal of the fifth pereiopod. Ecdyson titer was measured by using High-Performance Liquid Chromatography (HPLC). The result showed that the titer of ecdysone was 5.27 µg/ml hemolymph. The titer of ecdysone was found higher compared to previous research on Homarus americanus; this result suggested that the spiny lobster Panulirus homarus needs a higher amount of ecdysone hormone to initiate the molting process.
Co-Authors Muhsinul Ihsan Nastiti Widjayanti