Its effects mainly lie in: ① Feeding animals are prone to neuroendocrine disorder, electrolyte imbalance of humoral cells, acid-base balance disorder in vivo, etc. under high stress conditions such as high temperature, immunity, childbirth, etc., thus affecting the normal metabolism of cells and reducing the production performance of feeding animals. Electrolyte balancing agent is mainly composed of K, Na and appropriate anions, etc. It can maintain the body's ion balance, stabilize the osmotic pressure inside and outside cells, regulate the acid-base balance of body fluids, and ensure the normal operation of cell metabolism, thus enhancing the body's immunity and anti-stress ability, and improving the production performance of feeding animals. ② Potassium chloride is a commonly used electrolyte balance regulator in clinic, with definite curative effect, and is widely used in various clinical departments. It can be used for the treatment and prevention of hypokalemia caused by various reasons (insufficient eating, vomiting, severe diarrhea, application of potassium-expelling diuretics or long-term application of glucocorticoid and adrenocorticotropic hormone, potassium-losing nephropathy, Bartter syndrome, etc.), and can also be used for the treatment of frequent, multi-source premature beats or rapid arrhythmia caused by cardiac and renal edema and cardiac glycoside poisoning such as digitalis.