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June 6, 2013


Copepod Nauplii as a Shrimp Hatchery Feed


Daniel Gruenberg ( Copepods are normally not found in shrimp ponds in sufficient numbers to be a major component of the diet, so it is not surprising that studies looking at stomach contents don’t find them.  The swimming motion of copepod nauplii is very similar to that of Artemia.


By feeding copepod nauplii to shrimp in their early stages, I consistently get faster growth and an increase in body weight of 30% to 100% at 30 days, compared to standard methods.  My work with the Thai Department of Fisheries showed that Penaeus monodon, stocked at 25/m2, weighed an average of 5.6 grams at 30 days, compared to just over 2 grams for the Department’s standard methods.


I often find hatchery animals grasping a copepod nauplii in each cheliped.


Source: The Shrimp List (a mailing list for shrimp farmers).  Subject: Copepods.  June 6, 2013.


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