| 1 | Three cell lines were established from muscle, heart and swim bladder SHS of snakehead (Channa striatus. | |
| 2 | All along the disease is considered to be caused by abnormal swim bladders. | |
| 3 | Piranhas produce noises by vibrating, or moving their swim bladders. | |
| 4 | Question... JAF's friend was telling us it's actually PIG SKIN instead of fish maw. | |
| 5 | But the X-ray photography show is that it is still possible to suffer from the disease and normal swim bladders. |