3. Results
3.1. Larval growth performance
The survival of the larvae originating from the BFT broodstock
tank was higher than for the larvae originating from the control tank, regardless of the type of water in which they were housed (Table 1).
No significant differences between the treatments were observed in
terms of specific growth rate and the condition factor. The relative standard
deviation that represents the variability of the fish total length was
lower in case the larvae were reared in BFT water. The difference was
significant with larvae originating from the BFT broodstock tank. No
significant interaction between the origin of the larvae and the larvae
culture water was observed for any of the growth parameters measured
in this study.
The post challenge survival of tilapia larvae originating from the BFT
broodstock tank was significantly higher than those originating from
the control broodstock tank (P = 0.044) (Fig. 1). The culture water in
which the larvae were housed, however, did not significantly affect
the survival post challenge (P=0.245). Interestingly, the post challenge
survival of larvae from the C/BFT treatment was also 36% higher than
that of larvae from the C/C treatment. No significant interaction was
observed between the origin of the larvae and the larvae culture water
(P= 0.472).