GH1 and Hyperglycemia: For example, intraperitoneal injection of GH caused hyperglycemia in Mozambique tilapia (Oreochromis mossambicus) and coho salmon (Oncorhynchus kisutch) (8, 9), and treatment with GH decreased the glycolytic potential in the liver of rainbow trout (Oncorhynchus mykiss) (10).