Table 4 The number of eggs, percent cleavage, neurulation and swim-up during the fertile period (11.5–17.5 hrs post-induction) for Bufo baxteri having received either one or two primings. In this table, the mean number of eggs, percent cleavage, neurulation and swim-up are based only on toads that produced eggs. Data are expressed as means ± SE. A significant difference was found for egg numbers, percent neurulation and swim-up, but not for percent cleavage between the two treatment groups.
|  | Fertilization data from one priming 11.5–17.5 hrs post-induction | Fertilization data from two primings 11.5–17.5 hrs post-induction | ||||||
|---|---|---|---|---|---|---|---|---|
Toad No. | No. Eggs | Cleavage (%) | Neurulation (%) | Swim-up (%) | No. Eggs | Cleavage (%) | Neurulation (%) | Swim-up (%) |
1 | 0 | na | na | na | 3,540 | 16.9 | 13.1 | 7.2 |
2 | 250 | 0 | 0 | 0 | 3,530 | 21.7 | 12.4 | 11.8 |
3 | 1,430 | 2 | 1.2 | 0.6 | 4,355 | 24.8 | 21.1 | 17.7 |
4 | 2,325 | 3.1 | 3.1 | 0 | 1,191 | 0 | 0 | 0 |
5 | 0 | na | na | na | 0 | na | na | na |
6 | 260 | 9.6 | 3.1 | 0 | 2,050 | 3.3 | 0 | 0 |
7 | 1,250 | 0.4 | 0.1 | 0.1 | 1,255 | 22.0 | 19.3 | 11.6 |
8 | 0 | na | na | na | 4,090 | 6.7 | 3.6 | 1.9 |
9 | 3,135 | 23.3 | 2.4 | 0.5 | 2,950 | 6.1 | 6.6 | 4.8 |
10 | 0 | na | na | na | - | - | - | - |
Mean ± SE | 1,441 ± 465 | 6.4 ± 3.6 | 1.7 ± 0.6 | 0.2 ± 0.1 | 2,870 ± 436 | 12.7 ± 3.4 | 9.5 ± 2.9 | 6.9 ± 2.3 |