Improved Tilapia

Improved Tilapia
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Genetically Male Tilapia (GMT®)

Fishgen's innovation provides a solution to an age old problem in tilapia culture.

A major problem in tilapia culture is that females grow slower than males, early sexual maturation diverts energy from growth to reproduction and unwanted breeding results in overcrowding and competition.  The most effective solution to this problem is to produce and grow only male fish.  Fishgen have addressed this problem in an innovative way through the application of basic genetics, to develop a unique product in Genetically Male Tilapia (GMT®).  

The GMT® developed by Fishgen have proved to be excellent production fish in both extensive and intensive systems using ponds, raceways, cages or tanks. They are now in use in more than 20 countries around the world. The advantages they offer over mixed sex or hormonally sex reversed production include:


No hormone treatment


Greater viability


Better food conversion efficiency


Much reduced variation in size


High growth rate


Improved yield

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This page was last updated on 25 August 2005