2. Chicken kidney is an organ of chicken, belonging to the urinary system, which is responsible for filtering impurities in blood, maintaining the balance between body fluids and electrolytes, and finally discharging urine from the body through subsequent pipes; At the same time, it also has endocrine function to regulate blood pressure.

3. It is not commonly known as "chicken kidney". The "chicken kidney" commonly known by ordinary people is actually the reproductive organ "testis" of chicken, which should be distinguished from chicken kidney.