Antibiotic-free astaxanthin animal mixed feed additive preparation method

The invention relates to an antibiotic-free astaxanthin animal mixed feed additive preparation method, wherein the components of the formula (by weight) comprise: 1.7-2.7% of Coriolus versicolor polysaccharide, 1.5-2.5% of a Panax notoginseng extract, 0.8-1.8% of Tieguanyin green powder, 0.6-1.6% of yeast, 0.5-1.5% of ammonium formate, 1-2% of hawthorn powder, 2.9-3.9% of actinomycete, 1.6-1.7% ofdextran, 2.5-3.5% of myricetin, 2-3% of Bacillus circulans, 1.8-2.8% of sodium diacetate, 2.7-3.7% of alpha-galactosidase, 0.9-1.9% of a lychee skin extract, 0.1-1% of capsanthin, 1-2% of pectin, 0.7-1.7% of folic acid, 0.3-1.3% of menadione dimethylpyrimidinol bisulfite, 1.3-2.3% of Bacillus lentus, 1.9-2.9% of manganese carbonate, 1.7-2.7% of a snake gallbladder extract, 1.2-2.2% of astaxanthin, and 71.3-51.3% of water. According to the present invention, the antibiotic-free astaxanthin animal mixed feed additive can well resist Salmonella infection, improve the egg yolk to increase the pigment content, improve the