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April 21, 2015


Replacing Artemia with Copepods


Liu Fengqi (, General Manager of Tianjin Intra Technologies, Co., Ltd., in China, reports:


Starting this spring, Chinese shrimp hatcheries began using frozen copepods to supplement Artemia nauplii in their larval cultures, and they have been getting very good results.  Frozen copepods can be used from the zoea-2 stage up to and through the PL stage.  With 50% supplementation, PL output increases from 20% to 60%.  Zoea and mysis larvae require small copepods (500-800 um) and PLs require larger copepods (700-1300 um), both of which sell for five dollars per kilogram, FOB China.  3,000 kilograms of copepods can be used to replace 1,000 kilograms of Artemia cysts.  The copepods are irradiated to kill all possible pathogens, so biosecurity is guaranteed.  In addition, copepods have higher nutritional value than Artemia nauplii.




Source: Email to Shrimp News International.  Subject: India Artemia Shortage.  Liu Fengqi.  April 20, 2015.

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