The invention discloses a compound shell reinforcing additive for sugpo prawns and a preparation method of the compound shell reinforcing additive. The additive is characterized by being prepared from the following substance ingredients in percentage by weight: 40 percent to 60 percent of
monocalcium phosphate, 5 percent to 20 percent of
calcium lactate, 2 percent to 4 percent of
astaxanthin, 5 percent to 10 percent of
cholesterol, 10 to 15 percent of 35 percent
vitamin C-
phosphate, 1 percent to 3 percent of
vitamin D3, 2 percent to 4 percent of
vitamin E and 5 percent to 15 percent of
mannan oligosaccharide, wherein the
astaxanthin has a chemical name of 3,3'-dihydroxy-4,4'-diketo-beta, beta'-renieratene, and a molecular formula is C40H52O4. The preparation method comprises the steps that all ingredients are weighed according to the weight percentage; all ingredients are respectively crushed; and all ingredients are put in a mixing
machine for being uniformly mixed, wherein the feeding has the order that
monocalcium phosphate is firstly placed, and then other ingredients are successively added. The additive and the preparation method have the advantages that the problems of shell softness, shell removal unsuccess, shell reinforcement and the like in the sugpo
prawn cultivation process are solved, the self
immunocompetence of the sugpo prawns is improved, any adverse influence is not caused on the feed
palatability, the
raw material ingredient source is stable, and the cost is low.