TY  - JOUR
T1  - Use of Biofuel By-Products from the Green Algae <I>Desmochloris</I> sp. and Diatom <I>Nanofrustulum</I> sp. in Diets for Nile Tilapia <I>Oreochromis niloticus</I>
AU - Garcia-Ortega, Armando AU - Martinez-Steele, Laura AU - Gonsalves, Dennis AU - Wall, Marisa M. AU - Sarnoski, Paul J. 
JO  - Journal of Aquaculture Feed Science and Nutrition
VL  - 6
IS  - 4
SP  - 66
EP  - 73
PY  - 2014
DA  - 2001/08/19
SN  - 2070-1667
DO  - joafsnu.2014.66.73
UR  - https://makhillpublications.co/view-article.php?doi=joafsnu.2014.66.73
KW  - Nile tilapia
KW  -microalgae
KW  -diatom
KW  -green algae
KW  -fish feeds
KW  -Hawaii
AB  - Algal by-product meals from the Hawaiian biofuels industry were evaluated as ingredientsin diets for juveniles of Nile tilapia (<I>Oreochromis niloticus</I>). Four experimental diets were formulated to fulfill fish nutritional requirements. The diets were made with fish meal, soybean meal whole diatom (<I>Nanofrustulum</I> sp.) meal or defatted green algae (<I>Desmochloris</I> sp.) meal as the test ingredients. A feeding experiment with juvenile tilapia of 2.6±0.1 g initial weight was carried out in a freshwater recirculation system with each diet treatment tested in triplicate tanks. Fish were fed the experimental diets to apparent satiation twice a day for 12 weeks and fish weight was measured every 3 weeks. Water temperature was maintained at 22.7±0.8&deg;C, salinity at 0.1±0.0 ppt and dissolved oxygen at 5.6±0.5 mg L&#8254;<SUP>1</SUP>. At the end of the experiment a significant effect (p&lt;0.05) of diet treatments was found in fish growth and feed utilization with specific growth rate, food conversion ratio and retained nitrogen efficiency being highest for the green algae-based diet. Lipid content in the diets was lower than expected for the algae diets. Proximate composition analysis showed no significant difference (p&gt;0.05) in the protein content of the fish bodies among the diets.
ER  -