Fish farming is to hatch fish from eggs or to raise from juvenile fish right after hatching. Imported fish farming tuna, which is out in the market now, is actually fish fattening tuna that is raised bigger by feeding to full-grown fish. Fish fattening is to catch tuna by fixed net fishing method when they are skinny after egg-laying, and to fatten by feeding wild fish such as sardine and mackerel for three months.
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Revision date: September 26, 2017
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