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January 23, 2016

The World

Response to Eric Muylder’s Comments on PL Quality


Jorge L. Cordova ( responds to The Shrimp List discussion on postlarvae quality: In the past, we screened postlarvae (PL) at the hatchery once or twice to get rid of the smaller animals.  After the second screening, you lose around 10 or 12 percent of the original number.  We have attempted to raise some of the small, screened PLs at low densities, and they still didn’t grow at a normal rate.  Screening should be done when there are around 300 PLs to a gram.


Eric, are those Shrimp Improvement Systems’ PLs you’re getting in Europe fast growers?  Are they IHHNV free?


Source: The Shrimp List (a mailing list for shrimp farmers).  Subject: Quality of PL11 and Subsequent Growth.  Jorge Cordova.  January 22, 2016.

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