Table 4.
Number of cercariae-releasing (CR) snails and number of Fasciola hepatica cercariae in the two temperature-challenged subgroups subjected to natural light during thermal shock (experiment A) in relation to sky nebulosity expressed in 2 octas each.
| Sky nebulosity (octas) | Thenay |
Chitray |
||||
|---|---|---|---|---|---|---|
| Total number of cercariae (n = 11,673) | Number of CR snails (n = 39)* | Number of cercariae per CR snail* | Total number of cercariae (n = 9809) | Number of CR snails (n = 34)* | Number of cercariae per CR snail* | |
| 0 | 356 | 1.8 (0.7) | 197.7 (23.6) | 251 | 1.4 (0.5) | 179.2 (41.5) |
| 1–2 | 1352 | 5.1 (2.3) | 265.0 (41.7) | 692 | 2.6 (1.1) | 266.1 (78.3) |
| 3–4 | 1878 | 6.4 (4.2) | 293.4 (63.7) | 1320 | 5.1 (2.9) | 258.8 (94.6) |
| 5–6 | 2388 | 9.3 (5.1) | 256.7 (94.5) | 2124 | 7.8 (4.5) | 272.3 (77.4) |
| 7–8 | 5699 | 16.4 (9.2) | 347.5 (123.5) | 5422 | 17.1 (10.4) | 317.0 (114.7) |
*
Mean value (SD).