The invention relates to a spirulina
feed additive for
livestock, poultry and aquatic
livestock and a preparation method thereof, which belong to the field of biological agents. The
mass ratio of compositions of raw materials of the spirulina
feed additive is that spirulina to radix astragali to yellow beans to aloe to
salvia miltiorrhiza to
rhodiola rosea is 30-46: 1-2 : 5-10: 1-2:1-2: 1-2. The spirulina
feed additive has efficacies of improving the
survival rate of animals, strengthening immunologic functions, improving
disease resistance capability, promoting growth
nutrient, increasing eating amount, strengthening the constitution, increasing the weight, strengthening cellular immune functions, resisting the stress, protecting livers, quickly supplementing high-efficiency nutritional components needed by the animals and so on, to the
livestock, the poultry, and the aquatic livestock. The spirulina feed additive is mixed with feed, and has the advantages of
high absorption ratio, broad distribution, no residual
medicine, no toxic
side effect, and broad safety range. The preparation method has the advantages that the preparation method has simple process and convenient operation, can obtain high-concentration high-yield products, and has no
pollution to the environment.