Artificial incubation for intensive fry production of Nile tilapia Oreochromis niloticus (L.)

Two experiments were conducted to evaluate and compare the production, quality, and survival of eggs and the subsequent growth and survival of fry in two small scale production systems: (i) natural incubation (NI), and (ii) egg collection followed by artificial incubation in upwelling glass funnels (AI). Cost benefits analysis was applied to the production figures to compare the economic viability of the two methods. The results were used to design a fry production system for the intensive production of Genetically Male Tilapia (GMT) from limited numbers of novel YY-male broodstock