@article{Aslianti_Setyadi_2015, title={NATURAL FEED (ROTIFER) MANAGEMENT ON ORANGE SPOTTED GROUPER Epinephelus coioides LARVAL REARING}, volume={6}, url={https://journal.ipb.ac.id/index.php/jurnalikt/article/view/9015}, DOI={10.29244/jitkt.v6i2.9015}, abstractNote={<p><strong><em>ABSTRACT</em></strong><strong><em></em></strong></p> <p><em>A</em><em>ccording to Indonesian Standard Quality</em><em>, t</em><em>he optimal</em><em> seed </em><em>production of orange spotted grouper (<span style="text-decoration: underline;">Epinephelus</span> <span style="text-decoration: underline;">coioides</span>)<strong> </strong>has been unsuccessful due to </em><em>the </em><em>problem</em><em>s occurred</em><em> during larval rearing period. </em><em>Efforts</em><em> on mass rearing of larvae has been carried out in this study to optimize the natural feeding (rotifer). </em><em>The </em><em>purpose</em><em> of this research </em><em>wa</em><em>s to </em><em>obtain</em><em> the information about an appropriate duration time for </em><em>natural</em><em> feeding (rotifer) to produce higher survival rate. The treatment for providing rotifers on larvae (days after hatching/DAH) i.e., (A) 20 days, (B) 25 days, (C) 30 days, and (D) 35 days. Rotifers were enriched with DHA Selco. Experiment used fiber </em><em>tanks with </em><em>1 m<sup>3 </sup>capacity with a</em><em> completely randomized design</em><em> (CRD) and three replicates. The larvae was reared to achieve the juvenile phase (D-45). The best results from 1 m<sup>3</sup> tanks were then reared using concrete tanks of 6 m<sup>3</sup> and 10 m<sup>3</sup> capacities. The results showed that feeding of rotifers up to 25 DAH larvae on fiber tanks (1 m<sup>3</sup>) produced the hughest survival rate (7.63 %). Meanwhile, the mass reared in 6 m<sup>3</sup> and 10 m<sup>3</sup> concrete tanks produced  survival rate of 4.9</em><em>±</em><em>3,54</em><em>% and 8.8</em><em>±</em><em>2.26%, respectively. The</em><em> </em><em>homogenous</em><em> size</em><em> was relatively high (80%) and the seed </em><em>abnormality was relatively low (0.4%). </em><em></em></p> <p> </p> <strong><em>Keywords: </em></strong><em>rotifers</em><em>, feeding time, Orange Spotted  grouper larvae, Epinephelus coioides</em&gt;}, number={2}, journal={Jurnal Ilmu dan Teknologi Kelautan Tropis}, author={Aslianti, Titiek and Setyadi, Irwan}, year={2015}, month={Feb.} }