Figure 5From: A comparison of human chorionic gonadotropin and luteinizing hormone releasing hormone on the induction of spermiation and amplexus in the American toad (Anaxyrus americanus)The percentage of male Anaxyrus americanus amplexing females over time following hormone administration. Males were treated with the optimal hormone concentrations from Study 1 and Study 2, specifically, 300 IU hCG (n = 12/trt) or 4.0 μg LHRH (n = 11/trt). Females were not treated with any hormones.Back to article page