Monoculture Yield Trials of an All-Male Hybrid Tilapia in Small Farm Ponds in Puerto Rico

摘要

The use of an all-male tilapia hybrid in monoculture was tested in two earthen farm ponds near Mayaguez, in western Puerto Rico, from January to June 1976. Hybrid fingerlings were first produced in plastic-lined pools from crosses between female Tilapia nilotica and male T. hornorum and stocked in the ponds at a rate equivalent to 1,000/ha. The results showed that the all-male hybrid is a promising solution to the overcrowding problem common to tilapia cultures.