Why finfish seed production was unsuccessful in Chile.
Why finfish seed production w as unsuccessful in Chile Masatoshi FUTAGAWA CORDUNAP February 24, 2012 There were many finfish seed production projects for decades and majority were failure, a few had produced or none. I have some points of view about the reasons why. Major problem is nutrition of rotifer, particularly feeds for rotifer. 1. Rotifer culture and handling 1.1. Nutritional value Rotifer is commonly used for primary live feeds for fish larva. Chile fish seed production use rotifer which is cultured by bread yeast (SMC, Saccharomyces cerevisiae , 4-7 µm) or marine chlorella (NCO, Nannochloropsis oculata , 2-6 µm ) and feed to fish larva after enrichment. Besides, it is cultured by concentrated freshwater chlorella (CCV12, Chlorella vulgaris , 2-10 µm, 12 billion cells/ml, vitamin B 12 soluble) and NCO. Then it is fed to larva after enrichment in Japan . In 2006, 51 % of hatchery use CCV12 and 92 % use CCV12 and NC...