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April 16, 2016


Research—Dried Biofloc as Postlarvae Feed


From Abstract: In this study, the suitability of biofloc (BF), discarded as waste from a Penaeus vannamei farm, was investigated as a dietary replacement in rearing P. vannamei postlarvae (PL).  A commercial shrimp diet (control) was compared to four diets containing dried waste biofloc at 25%, 50%, 75% and 100% replacement levels and fed to PLs to evaluate the survival rate, growth performance and nutritional composition.  Total ammonium nitrogen and nitrite nitrogen were maintained in culture tanks with minimal water exchange throughout the experiment.  Results showed that PLs fed with 50% biofloc feed  had significantly higher growth rates, compared to the other treatments.  In addition, PLs fed with 50% and 75% BF had significantly higher survival rates, compared to those fed with commercial feed only.  Protein content of PLs fed with 50% and 75% BF was comparable to those fed with a commercial feed.  This study demonstrates that waste biofloc has potential to be used as a cost effective feed for rearing shrimp PLs.


Source: International Biodeterioration and Biodegradation.  Biofloc as a Potential Natural Feed for Shrimp Postlarvae.  Helena Khatoona (Email, Institute of Tropical Aquaculture, Universiti Malaysia Terengganu, 21030 Kuala Terengganu, Malaysia), Sanjoy Banerjee, Gregory Tan Guan Yuan, Noorazilah Haris, Mhd Ikhwanuddin, Mohd Azmi Ambak and Azizah Endut.  In Press, a Corrected Proof, Available Online, April 12, 2016.

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