| Chemical products |
Concentration (ppm) |
Viability1 |
| CPM2 % (mean ± SE) |
RPS3 (%) |
| Control (PBS) |
|
11.36a ± 2.64 |
0.00 |
| Bronopol |
50 |
11.10a ± 3.60 |
2.3 |
| |
500 |
10.50a ± 2.82 |
7.5 |
| |
2,000 |
8.50a ± 3.56 |
25.2 |
| Hydrogen peroxide |
40 |
9.60a ± 2.77 |
15.5 |
| |
1,000 |
8.30a ± 2.14 |
26.9 |
| |
2,500 |
10.10a ± 3.12 |
11.1 |
| Glutaraldehyde |
300 |
10.30a ± 4.46 |
9.3 |
| |
1,500 |
27.30a ± 13.83 |
-140.4 |
| |
2,000 |
44.50b ± 15.83 |
-291.8 |
| Incimaxx Aquatic® |
10 |
11.60a ± 5.15 |
-2.1 |
| |
150 |
12.60a ± 4.98 |
-10.9 |
| |
185 |
14.30a ± 4.04 |
-25.9 |
| Chloramine-T |
50 |
14.10a ± 5.85 |
-24.2 |
| |
600 |
9.40a ± 3.75 |
17.2 |
| |
800 |
8.50a ± 2.95 |
25.2 |
1Rainbow trout eggs (5 days before hatching) were treated 20 minutes with the corresponding chemical product and viability of eggs/fry was recorded over a 5-weeks period.
2CPM, the cumulative percentage mortality (n=5 per treatment).
3RPS, the relative percentage survival; it was determined relative to PBS treatment.
Mean CPM values with different superscripts indicate significant difference at p<0.05. |
|
