Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae

ABSTRACT Experiment was performed to assess the effect of 17a-methyltestosterone (MT) treatment on Congo tetra fish larvae.  To evaluate the optimal pattern of MT treatment, three different treatments were administrated.  Three months old larvae were submerged in three different doses of MT; 1, 2 a...

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Main Authors: Harton Arfah, , Alimuddin, K. Sumantadinata, Julie Ekasari
Format: Article
Language:English
Published: Asosiasi Sains Akuakultur Indonesia 2007-08-01
Series:Jurnal Akuakultur Indonesia
Online Access:https://journal.ipb.ac.id/index.php/jai/article/view/3848
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author Harton Arfah
, Alimuddin
K. Sumantadinata
Julie Ekasari
author_facet Harton Arfah
, Alimuddin
K. Sumantadinata
Julie Ekasari
author_sort Harton Arfah
collection DOAJ
description ABSTRACT Experiment was performed to assess the effect of 17a-methyltestosterone (MT) treatment on Congo tetra fish larvae.  To evaluate the optimal pattern of MT treatment, three different treatments were administrated.  Three months old larvae were submerged in three different doses of MT; 1, 2 and 4 mg/l.  These studies showed that the highest percentage of male fish was obtained by 4 mg/l MT treatment, 87,17%.  The 2 mg/l and 1 mg/l MT treatments obtained 77,53% and 69,86% male respectively, two times higher than control, 38,96%.  On the other hand, the 4 mg/l MT treatment also resulted the highest percentage of hermaphrodite fishes, 17,58%.  The highest survival rate was shown by 1 mg/l MT treatment, 62,77% and the lowest was shown by the 4 mg/l MT treatment, 47,20%.  The highest rate of fish length and weight was shown by the 4 mg/l MT treatment, 4,4 cm and 1,65 gram respectively.  These findings suggest that MT treatment offers an advantage in growth of  tetra Congo larvae. Key word :  Sex reversal, methyltestosterone, Congo tetra fish, Micraleptus intterruptus.   ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh perendaman larva di dalam larutan hormon 17a-metiltestosteron pada dosis 1, 2 dan 4 mg/l larutan.  Persentase tertinggi ikan jantan dihasilkan  oleh perlakuan 4 mg/l, yaitu 87,17%.  Perlakuan 2 mg/l dan 1 mg/l masing-masing menghasilkan 77,53% dan 69,86% sedangkan kontrol menghasilkan 38,96% jantan.  Efek lain dari perlakuan MT ini adalah hermafroditisme.  Perlakuan 4 mg/l menghasilkan persentase hermafrodit tertinggi yaitu 17,58%, sedangkan pada kontrol kelangsungan hidup tertinggi diperoleh pada perlakuan 1 mg/l (62,77%) dan terendah pada perlakuan 4 mg/l (47,20%).  Hasil tersebut menunjukkan adanya pengaruh dosis hormon terhadap kelangsungan hidup ikan.  Pengukuran bobot dan panjang ikan pada setiap perlakuan menunjukkan nilai tertinggi dihasilkan oleh perlakuan 4 mg/l  yaitu 1,65 gram dan 4,40 cm.  Hal ini diduga bahwa hormon MT merangsang pula pertumbuhan ikan. Kata kunci :  Pergantian kelamin, metiltestosteron, ikan tetra Kongo, Micraleptus intterruptus.
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spelling doaj-art-3ab9bf00438b416e9e4727a81bc5c8912025-01-24T18:03:34ZengAsosiasi Sains Akuakultur IndonesiaJurnal Akuakultur Indonesia1412-52692354-67002007-08-011210.19027/jai.1.69-743469Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) LarvaeHarton Arfah0, Alimuddin1K. Sumantadinata2Julie Ekasari3Bogor Agricultural University, Department of AquacultureBogor Agricultural University, Department of AquacultureBogor Agricultural University, Department of AquacultureBogor Agricultural University, Department of AquacultureABSTRACT Experiment was performed to assess the effect of 17a-methyltestosterone (MT) treatment on Congo tetra fish larvae.  To evaluate the optimal pattern of MT treatment, three different treatments were administrated.  Three months old larvae were submerged in three different doses of MT; 1, 2 and 4 mg/l.  These studies showed that the highest percentage of male fish was obtained by 4 mg/l MT treatment, 87,17%.  The 2 mg/l and 1 mg/l MT treatments obtained 77,53% and 69,86% male respectively, two times higher than control, 38,96%.  On the other hand, the 4 mg/l MT treatment also resulted the highest percentage of hermaphrodite fishes, 17,58%.  The highest survival rate was shown by 1 mg/l MT treatment, 62,77% and the lowest was shown by the 4 mg/l MT treatment, 47,20%.  The highest rate of fish length and weight was shown by the 4 mg/l MT treatment, 4,4 cm and 1,65 gram respectively.  These findings suggest that MT treatment offers an advantage in growth of  tetra Congo larvae. Key word :  Sex reversal, methyltestosterone, Congo tetra fish, Micraleptus intterruptus.   ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh perendaman larva di dalam larutan hormon 17a-metiltestosteron pada dosis 1, 2 dan 4 mg/l larutan.  Persentase tertinggi ikan jantan dihasilkan  oleh perlakuan 4 mg/l, yaitu 87,17%.  Perlakuan 2 mg/l dan 1 mg/l masing-masing menghasilkan 77,53% dan 69,86% sedangkan kontrol menghasilkan 38,96% jantan.  Efek lain dari perlakuan MT ini adalah hermafroditisme.  Perlakuan 4 mg/l menghasilkan persentase hermafrodit tertinggi yaitu 17,58%, sedangkan pada kontrol kelangsungan hidup tertinggi diperoleh pada perlakuan 1 mg/l (62,77%) dan terendah pada perlakuan 4 mg/l (47,20%).  Hasil tersebut menunjukkan adanya pengaruh dosis hormon terhadap kelangsungan hidup ikan.  Pengukuran bobot dan panjang ikan pada setiap perlakuan menunjukkan nilai tertinggi dihasilkan oleh perlakuan 4 mg/l  yaitu 1,65 gram dan 4,40 cm.  Hal ini diduga bahwa hormon MT merangsang pula pertumbuhan ikan. Kata kunci :  Pergantian kelamin, metiltestosteron, ikan tetra Kongo, Micraleptus intterruptus. https://journal.ipb.ac.id/index.php/jai/article/view/3848
spellingShingle Harton Arfah
, Alimuddin
K. Sumantadinata
Julie Ekasari
Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae
Jurnal Akuakultur Indonesia
title Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae
title_full Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae
title_fullStr Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae
title_full_unstemmed Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae
title_short Sex Reversal on Congo Tetra Fish (Micraleptus intterruptus ) Larvae
title_sort sex reversal on congo tetra fish micraleptus intterruptus larvae
url https://journal.ipb.ac.id/index.php/jai/article/view/3848
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AT ksumantadinata sexreversaloncongotetrafishmicraleptusintterruptuslarvae
AT julieekasari sexreversaloncongotetrafishmicraleptusintterruptuslarvae