L. Forró szerk.: Miscellanea Zoologica Hungarica 7. 1992 (Budapest, 1992)

Gubányi, A., Kéri, Gy. , Fehér, T.; Pekli, J.: A chicken GnRH analogue (Folligen) stimulates plasma testosterone level and sexual activity in the male marsh frog during and out of spawning season - Preliminary notes

Fig. 2. Effect of different GnRHa treatment on plasma estradiol level in marsh frogs tested in summer. Vertical bars represent means and SEM (* = frogs were treated with GnRHa for 6 days, see Material and methods) Fig. 3. Testosterone-estradiol ratios in marsh frogs tested in summer. Vertical bars represent means and SEM (* = frogs were treated with GnRHa for 6 days, see Material and methods)