Used in biochemical and medical research to quantify glycogen synthase enzyme activity in fish tissue samples. Helps in studying metabolic regulation, particularly glucose metabolism and energy storage in aquatic species. Widely applied in aquaculture research to assess nutritional status, growth efficiency, and stress responses in farmed fish. Also supports studies on metabolic diseases and environmental adaptations by measuring changes in enzyme levels under different physiological conditions. Suitable for use in laboratories focusing on comparative physiology and endocrinology of fish.