In Brazil, pirarucu and tambaqui will be able to rely on genetic testing to identify the sex

Producers of pirarucu (Arapaima gigas) and tambaqui (Colossoma macropomun) fingerlings will be able to rely on a genetic testing service to identify the sex of these fish, allowing for effective management both in the formation of breeding stock and in the early formation of families. for genetic improvement programs. This early sexing technology is unprecedented for fish native to Brazil. It is unreliable to differentiate the sex by the animals' appearance alone. The identification of sex in tambaqui is only possible by visual inspection of the adult fish. In the specific case of arapaima, the available methods are invasive, limited to the reproductive period, and expensive (see text below). Therefore, the technology should help the production chains of both species, both with enormous market potential in national fish farming. The new technological solution consists of molecular sexing tests for individual sex identification of pirarucu and tambaqui fish. The arapaima genetic ...