Used to measure arginase activity in mouse biological samples such as serum, plasma, tissue lysates, and cell culture supernatants. Commonly applied in immunology and inflammation research, especially in studies involving macrophage polarization, where M2 macrophages exhibit high arginase activity. Helps assess immune responses in models of infection, allergy, cancer, and tissue repair. Provides a quantitative, high-throughput method for evaluating arginase as a biomarker or therapeutic target in mouse disease models.