Tag Archive: tilapia sex reversal

Apr 08 2014

Constructing a simple net grader for tilapia or catfish fry in Benin

Photo credit: Ismael Radwan (Egypt) Description: Abdel Rahman El Gamal The two photos show a simple 2-unit fish grader made of a metal frame and netting materials which are locally available in Benin. As expected, the inner unit which is smaller and shallower should be made of larger-mesh net to enable larger size fry to …

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