饲料级磷酸氢钙可应用于饲料加工中作为磷、钙的补充剂。由于其中的磷钙比与动物骨骼中磷钙比最为接近，并且能够全部溶于动物胃酸中，很容易进入动物体内参加其新陈代谢，保持骨骼中的磷钙比能够促进动物机体快速生长的同时防止动物因缺磷钙所引起的各种疾病，是目前国内外公认的最好的饲料矿物添加剂之一。可加速畜禽生长发育，缩短育肥期，快速增重；能提高畜禽的配种率及成活率，同时具有增强畜禽抗病耐寒能力，对畜禽的软骨症、白痢症、瘫疾症有防治作用。一般在动物饲料中添加饲料总量的1%-3%，家禽畜的肉蛋奶平均增产15%-20%，经济效益十分显著。

Feed-grade calcium hydrogen phosphate can be used as a supplement of phosphorus and calcium in feed processing. Because the ratio of phosphorus to calcium is the closest to that of animal skeleton, and can dissolve completely in animal gastric acid, it is easy to enter the animal body and participate in its metabolism. Maintaining the ratio of phosphorus to calcium in bone can promote the rapid growth of animal body and prevent various diseases caused by phosphorus and calcium in animals. At present, it is domestic. It is generally recognized as one of the best mineral additives for feed. It can accelerate the growth and development of livestock and poultry, shorten the fattening period and increase their weight rapidly. It can improve the breeding rate and survival rate of livestock and poultry, at the same time, it can enhance the disease resistance and cold tolerance of livestock and poultry, and it can prevent and cure the chondrosis, dysentery and paralysis of livestock and poultry. Generally, the total amount of feed added to animal feed is 1%-3%, and the average production of meat, eggs and milk of poultry and livestock is increased by 15%-20%. The economic benefit is remarkable.