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Journal : Omni-Akuatika

Synodontis eupterus Larvae Masculinization Using Javanese Long Pepper Extract (Piper retrofractum) Wijaya, Prassetyo Dwi Dhany; Junior, Muhammad Zairin; Soelistyowati, Dinar Tri; Widanarni, Widanarni
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (436.451 KB) | DOI: 10.20884/1.oa.2017.13.1.224

Abstract

Synodontis eupterus male represents only 5-10 % of farmer total synodontis production, which limits male availability for reproduction purpose. A method widely used in overcoming the low male production was masculinization through synthetic hormones, which was restricted due to its adverse impact on the environment. Natural ingredients from plant were demonstrated in various studies to substitute the 17α-methyltestosteron hormone on masculinization. This research aimed at evaluating the effects of Javanese long pepper extract (JLP) through immersion on synodontis fish larvae. The research was conducted using factorial design with two faktor (4x2) consisted of eight treatments: 17α-methyltestosteron 2 mg L-1 (MT) immersion for 5 and 10 hours, JLP dose 0.125 mg L-1 (P1) immersion for 5 and 10 hours and dose 0.25 mg L-1 (P2) immersion for 5 and 10 hours compared to the control treatment without immersion (P0). A hundred of synodontis larvae of 10 days old after hatching each replication were used in the immersion treatments. The results showed that JLP treatments produced 25-40 % of male synodontis age four months, 1-2 % females and above 60 % intersex. While at age five months, the percentage of intersex fish decreased to 20-40 %, the female fish increased to  60-62 %, and male fish ranged 20-35 % in JLP compared to the control P0 (15 %). The dose of JLP 0.25 mg L-1 increased mortality of about 14-54 %.
Co-Authors , Alimuddin , Wiyoto Achmad Sudradjat Agus Oman Sudrajat Aldilla Kusumawardhani, Aldilla Ambarwati, Arifah Aras, Annisa Khairani Asep Bulkini Ath-thar, M H. Fariduddin Ath-thar, M. H. Fariduddin Ath-thar, MH Fariduddin Ath-thar, MH Fariduddin Ath-thar, Muhammad Hunaina Fariduddin Dendi Hidayatullah, Dendi Deni Radona, Deni Deswira, Upmal Dian Hardiantho Dian Hardianto Diana, Farah Didik Ariyanto Elisdiana, Yeni Erlania Erlania, Erlania Euis Rakhmawati, Euis Faqih, Ibrahim Satrio Fauzan, Agung Luthfi Firmansyah, Rodhi Gleni Hasan Huwoyon, Gleni Hasan Gloria Ika Satriani HARTON ARFAH Herjayanto, Muh. Herjayanto, Muh. Ibrahim, Yusran Ida Ayu Amarilia Dewi Murni Irin Iriana Kusmini, Irin Iriana Irwan Irwan Iskandariah, Iskandariah Iskandariah, Iskandariah Jr., Muhammad Zairin Komar Sumantadinata Kristanto, Anang Hari Kristanto, Anang Hari Kukuh Nirmala Mahardhika, Prana Mahardhika, Prana Mahdaliana, nFN Mia Setiawati MUHAMAD SYUKUR MUHAMMAD ZAIRIN JUNIOR Mulyasari, Mulyasari ODANG CARMAN Oktaviani, Tia Oktaviani, Tia Pitriani, Peni Poppy Dea Bertha, Poppy Dea Prakoso, Vitas Atmadi Prassetyo Dwi Dhany Wijaya, Prassetyo Dwi Dhany Putriana, Intan Rahmadani Rahmadani Ratu Siti Aliah Ridwan Affandi Rini Susilowati, Rini Ronny Rachman Noor Rudhy Gustiano Safira Qisthina Ayuningtyas, Safira Qisthina Sri Sundari Sudarto, nFN Syahputra, Hafif Syarif, Ahmad Fahrul Syarif, Ahmad Fahrul Wahyutomo, Wahyutomo Wahyutomo, Wahyutomo Widanarni Widanarni Widanarni, nFN Zairin JR, Muhammad