The invention relates to a special animal biogen for shrimps and a preparation method thereof. The special animal biogen comprises raw materials of feed-grade
fulvic acid, total
flavones from taraxaci herba and a bitter
soybean meal fermentation culture, wherein the bitter
soybean meal fermentation culture comprises bitter
soybean meal substrates and inoculums; the bitter soybean
meal substrates comprise bitter soybean
meal,
maize meal and beet molasses; the inoculums comprise
saccharomyces cerevisiae,
lactobacillus plantarum, bacillus subtillis and live
bacillus licheniformis which have total sum of the number of 1*10<8> to 10*10<8>cfu / g; the total sum of the number of bacillus subtillis and live
bacillus licheniformis is 3*10<8> to 8*10<8>; the number of the
saccharomyces cerevisiae is 0.5*10<8> to 3*10<8>; and the number of the
lactobacillus plantarum is 0.5*10<8> to 2*10<8>. With the adoption of the special animal biogen for the shrimps, the technical defects of serious
drug resistance, reduction of
immunity, endogenous infection, double infection, harm for
human health and the like caused by unreasonable use of large amount of
antibiotics in the prior art are effectively overcome, and the effects of promoting growth, improving
immunity, preventing and resisting diseases and improving
animal product quality are achieved by repairing, regulating and exciting a digestive
system and an
immune system of an animal. The special animal biogen for the shrimps is a natural green product free of
hormone.