Table 5.
Number of live L3 retrieved by digestion from Pomacea maculata individuals previously exposed to L3 of Angiostrongylus cantonensis
| B1 | B2 | B3 | B4 | B5 | ||
|---|---|---|---|---|---|---|
| L3 dose per group | 200 | 500 | 500 | – | 10.000 | |
| L3 retrieval | Snail 1 | 0 | 1 | 0 | 0 | 3 |
| Snail 2 | 2 | 2 | 0 | 0 | 19 | |
| Snail 3 | 0 | 1 | 0 | 1 | 16 | |
| Snail 4 | 0 | 2 | 0 | 0 | 10 | |
| Snail 5 | 0 | 1 | - | 0 | 6 | |
| Snail 6 | 0 | 3 | 0 | |||
| Snail 7 | 2 | 1 | 1 | |||
| Snail 8 | 0 | 0 | 0 | |||
| Snail 9 | 0 | 1 | 0 | |||
| Snail 10 | 1 | 0 | 0 | |||
| Snail 11 | 0 | |||||
| Snail 12 | 0 | |||||
| Total | 5 | 12 | 0 | 2 | 54 | |
One snail from the exp. B3 died before the examination. The dose of L3 is not available for exp. B4, as the infection was mimicking the natural method of exposure without the possibility of counting the larvae released from drowned snails.