Compound feed for improving growth immunity of prawns and preparation method of compound feed

The invention provides a compound feed for improving growth immunity of prawns. The compound feed contains the following components in percentage by weight: 23%-28% of chicken powder, 25%-35% of fermented soybean meal, 12%-20% of high gluten flour, 10%-17% of peanut meal, 6%-10% of shrimp shell powder, 1%-2% of calcium dihydrogen phosphate, 1%-3% of liquid phospholipid and 0.5%-2% of immunopolysaccharide substances. The immunopolysaccharide substances are adopted in the compound feed, and a bletilla polysaccharide has anti-inflammatory and anti-oxidation effects and is capable of effectively improving immunity of animals, so that the defect that prevention and treatment of prawn diseases depend on antibiotics in the existing cultivation process of the prawns is solved. By utilizing the fermented soybean meal, absorption of the prawns is promoted, intestinal motions are improved, and the immunity of the prawns is improved. 本发明提供的一种提高对虾生长免疫的配合饲料，包括：鸡肉粉23～28％、发酵豆粕25～35％、高筋面粉12～20％、花生粕10～17％、虾壳粉6～10％、磷酸二氢钙1～2％、液体