Growth
Weights of hybrids and their parental species groups
were presented in Fig.3 and Table 4. At the 20th day
of the experiment, the average weight of unshocked
hybrids and shock-induced hybrids was found to be
lower than that of rainbow trout and Black Sea trout.
However, the average weights of unshocked hybrid
and shock-induced hybrid ¢sh reached higher body
weight when compared with diploid and triploid parental
species groups at the end of the experiment.
Both triploid and diploid control of Black Sea trout represented
lower weights than hybrid groups and
rainbow trout groups in all periods. Until day 20,
growth was slow and similar in all batches. From
days 20 to 60, a speci¢c growth rate di¡erence