Figure 2. Growth performance in F1 transgenic and full sibling non-transgenic zebrafish. Fifty-four zebrafish of F1 fry were randomly selected and grown individually under similar conditions. At the beginning of the experiment, they were four week old. Zebrafish were weighed weekly during 6 weeks to monitor growth performance. In the course of the experiment, fin DNA was extracted and assayed for transgene identification. Weight of transgenic and non-transgenic full siblings was compared employing a Student t-Test (*, P < 0.05).