Figure 4From: Hormonal induction of gamete release, and in-vitro fertilisation, in the critically endangered Southern Corroboree Frog, Pseudophryne corroboreeTotal proportion of live sperm released (sperm viability) by hormone treated males over a 72 h sampling period. Values represent mean ± SEM total proportion of live spermatozoa released by frogs following subcutaneous injection of i) saline solution (control, n = 6 males) ii) hCG (n = 6 males) or iii) LHRHa (n = 11 males).Back to article page