The effects of different feeds under the same salinity conditions on the growth and survival rate of artemia

Abstract

This study reports effects of 4 different feeds under same salinity conditions on feeding of artemia in terms of growth and survival rate. The feeds comprised of four groups (Group A: -16% Selco + 80% Headstart + 4% Molasses mixture feed; Group B: -85% Chlorella + 15% Molasses mixture feed; Group C: 50% Chlorella + 50% Headstart mixture feed and Group D: -100% Chlorella feed). Through stabilizing temperature, oxygen, pH and salinity values as general water parameters and replacing 10% sea water from the tank on daily basis, the survival rate and the growth in length of the artemia were analysed as well as the changes in nitrite content in the water. The results showed that the highest increase of 1400 μ in artemia with average pre-test length of 450 μ was observed on feed C. The highest rate of 58.33% survival was recorded on feed D. Similarly, the highest nitrite of 1.50 mg L-1 was measured in trial tank containing artemia fed on feed A and least nitrite generation of 0.45 mg L-1 was noted in trial tank containing artemia fed on feed C. © Medwell Journals, 2010.