The Effect of Dietary Vitamin E (-Tocopherol) Level on the Lipid, Essensial Fatty Acid Level and the Hatching Rate of Catfish, Clarias batrachus Linn.

• Main Authors: I. Mokoginta, , Syahrizal, M. Zairin Jr.
• Format: Article
• Language: English
• Published: Asosiasi Sains Akuakultur Indonesia 2007-08-01
• Series: Jurnal Akuakultur Indonesia
• Online Access: http://journal.ipb.ac.id/index.php/jai/article/view/3849
• ISSN: 1412-5269; 2354-6700

<p class="MsoNormal" style="text-align: justify;"><span lang="in" xml:lang="in">This experiment was conducted to evaluate the dietary level of vitamin E (</span><em><span lang="in" xml:lang="in">a</span></em><em><span lang="in" xml:lang="in">-tocopherol</span></em><span lang="in" xml:lang="in">) on the lipid, essential fatty acid level and the hatching rate of catfish, <em>Clarias batrachus</em> Linn. Five experimental diets with isoenergy and isonitrogen, but different vitamin E (</span><em><span lang="in" xml:lang="in">a</span></em><em><span lang="in" xml:lang="in">-tocopherol</span></em><span lang="in" xml:lang="in">) level were used in this experiment. Dietary vitamin E levels are 18, 114, 210, 308 and 416 mg/kg diet respectively.<span>  </span>Fish with body weight of 18,55 </span><span lang="in" xml:lang="in">a</span><span lang="in" xml:lang="in"> 5,11 g per fish, fed on the experimental diets at satiation, for six months.<span>  </span>The vitamin E, the lipid and the n-6 and n-3 fatty acid level of egg increase as the dietary vitamin E level of broodstock diet increase. However, the ratio of n-6/n-3 fatty acid of egg produced<span>  </span>by treatment 210 mg vitamin E/kg diet was higher than that of other treatments, which finally produced the highest hatching rate of egg (p&lt;0,05).</span></p><p class="MsoNormal" style="text-align: justify; line-height: 150%;"><span lang="in" xml:lang="in">Key words : Vitamin E (</span><em><span lang="in" xml:lang="in">a</span></em><em><span lang="in" xml:lang="in">-tocopherol</span></em><span lang="in" xml:lang="in">), reproduction, catfish (<em>Clarias batrachus</em> Linn.)</span></p>