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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.

From: Hormonal priming, induction of ovulation and in-vitro fertilization of the endangered Wyoming toad (Bufo baxteri)

  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