Table 1 Semi quantitative scoring of eye, brain, and kidney in red tilapia, O. niloticus hybrid, challenge experimentally to different routes of infection
Lesion | Brain | Eye | Kidney | |
|---|---|---|---|---|
Infiltration of mononuclear cells, congestion, detachment of blood vessel, hydrophic degeneration | Haemorrhage, congestion, infiltration of mononuclear cells, widening of retina layer | Hydropic degeneration, congestion, haemorrhage, | ||
Hour | Group | Â | Â | Â |
4 | 1 | 3 | 2 | 3 |
| Â | 2 | 1 | 2 | 2 |
| Â | 3 | 1 | 1 | 2 |
8 | 1 | 3 | 2 | 3 |
| Â | 2 | 1 | 3 | 2 |
| Â | 3 | 1 | 2 | 3 |
16 | 1 | 3 | 2 | 3 |
| Â | 2 | 2 | 3 | 3 |
| Â | 3 | 2 | 3 | 3 |
24 | 1 | 3 | 3 | 3 |
| Â | 2 | 3 | 3 | 3 |
| Â | 3 | 3 | 3 | 3 |