Soybean lecithin, also known as daidzein, is a by-product in the process of refining soybean oil. It is obtained by solvent extraction, centrifugation and alcohol washing. Granular soybean lecithin on the market is the phospholipid precipitated from soybean oil during degumming, and then processed and dried. Pure soybean lecithin is brownish yellow waxy solid, easy to absorb water and turn into brownish black colloid, easy to oxidize, and gradually change from brownish yellow to brownish black; Soybean lecithin contains lecithin and cephalin, which can delay aging and prevent cardiovascular and cerebrovascular diseases. Soybean lecithin can enhance the ability of cell information transmission, so as to improve brain vitality and cell membrane self-healing ability to protect the liver.

1. Supplement a certain amount of phospholipids in the feed to make the synthesis of lipoprotein proceed smoothly, and the fat in the liver can be transported out to prevent the occurrence of fatty liver.
2. Improve the body fat composition of animals. Adding an appropriate amount of soybean phospholipid to the feed can improve the slaughter rate, reduce abdominal fat and improve meat quality.
3. Improve growth efficiency and feed conversion rate.
4. Adding phospholipids to broiler feed can improve the growth status of broilers, increase the storage of vitamin A in liver and promote the growth of bone. During the rapid growth of aquatic animals and fish after hatching, rich phospholipids are needed to form the components of cells. When the biosynthesis of phospholipids can not fully meet the needs of larvae, phospholipids need to be added to the feed. In addition, phospholipids in feed can also promote the utilization of cholesterol by crustaceans and improve the growth and survival rate of crustaceans.