Effect of Triiodothyronine and Cortisol on Development, Growth and Survival Rate of Sand Goby (Oxyeleotris marmorata, Blkr.) Larvae
Authors: Pudji R.R Sri , Dewi S. , Junior M. Zairin 
Published: February 2017

<p class="MsoBodyText2" style="text-indent: 0cm;"><span style="font-size: 10pt;" lang="in" xml:lang="in">ABSTRACT<br /></span></p><p class="MsoBodyText2" style="text-indent: 0cm;"><span style="font-size: 10pt;" lang="in" xml:lang="in">This experiment was conducted to investigate the effect of triiodothyronine and cortisol on the development, growth, and survival rate of sand goby larvae.<span> </span>The experiment was carried out at Kolan Percobaan Babakan, Faculty of Fisheries and Marine Sciences, IPB Bogor.<span> </span>The larvae were immersed in solution of A (T<sub>3</sub> 2 mg/1 + C 1 mg/1), B (T<sub>3</sub> 2 mg/1 + C 0, 1 mgll), C (T<sub>3</sub> 2 mg/1 + C 0,0 1 mg/1) dan D (without hormone) for one hour.<span> </span>After treatment, larvae were reared in aquarium (50x50x50 cm).<span> </span>Larvae were fed by rotifer and phytoplankton, three times a day.<span> </span>Larval development, growth and survival rate were observed.<span> </span>Result showed that T<sub>3</sub> 2 mg/1 +C 1 nig/1 and T<sub>3</sub> 2 mg/1 + C 0, 1 mg/1 could accelerated development of swim bladder and eyespot of larvae.<span> </span>Treatment did not effect body pigmentation and growth; but effect survival rate of sand goby larvae.</span></p><p class="MsoNormal" style="text-align: justify;"><span lang="in" xml:lang="in">Key words :<span> </span>Triidothyronine, cortisol, larvae, sand goby fish, development, growth, survival rate</span></p><p class="MsoNormal" style="text-align: justify;"><span lang="in" xml:lang="in"> </span></p><p class="MsoNormal" style="text-align: center;" align="center"><span lang="in" xml:lang="in">ABSTRAK</span></p><p class="MsoNormal" style="text-align: justify;"><span lang="in" xml:lang="in">Penelitian ini bertujuan untuk mengetahui pengaruh pemberian hormon triidotironin dan kortisol terhadap perkembangan, pertumbuhan dan kelangsungan hidup larva ikan betutu.<span> </span>Penelitian ini dilakukan di Kolam Percobaan Babakan, Fakultas Perikanan dan Ilmu Kelautan, Institut Pertanian Bogor.<span> </span>Larva direndam selama satu jam dalam larutan A (T<sub>3</sub> 2 mg/1 + C 1 mg/1), B (T<sub>3</sub> 2 mg/1 + C 0, 1 mg/1), C (T<sub>3</sub> 2 mg/1 + C 0,0 1 mg/1) dan D (tanpa hormon).<span> </span>Setelah perlakuan, larva dipelihara dalam akuariun berukuran 50x50x50 cm.<span> </span>Selama pemeliharaan larva diberi pakan berupa rotifer dan fitoplankton dengan frekuensi tiga kali sehari.<span> </span>Perkembangan, petumbuhan, dan kelangsungan hidup larva diamati.<span> </span>Perendaman larva ikan betutu dalam larutan A dan B dapat mempercepat pembentukan gelembung renang dan bintik mata.<span> </span>Perlakuan yang diberikan tidak mempengaruhi kecepatan terjadinya pigmentasi tubuh dan pertumbuhan, tetapi mempengaruhi derriat kelangsungan hidup larva.</span></p><p class="MsoNormal"><span lang="in" xml:lang="in">Kata kunci :<span> </span>Triidotironin, kortisol, larva, ikan betutu, perkembangan, pertumbuhan, kelangsungan hidup</span></p>