The invention discloses
selenium-enriched fermented
soybean meal, a preparation method and application. The preparation method comprises the following steps: breeding of a
selenium-enriched strain, preparation of seed culture liquid, fermental cultivation,
monoclonal fermentation of probiotics, preparation of composite
bacteria liquid of the probiotics, adding of a fresh culture medium and preparation of high-activity
selenium-enriched
soybean meal. According to the preparation method, selenium-enriched
yeast and the probiotics are jointly used for fermenting
soybean meal, thus obtaining the fermented soybean
meal with high organic selenium content and rich amino acids. On one hand,
pollution and harm to the environment and an
animal body, which are possibly caused by direct adding of a selenite substance into a feed, are avoided; on the other hand, the content of selenium in the soybean
meal can be greatly increased; and the selenium-enriched fermented soybean
meal is rich in biological organic selenium and also contains a large quantity of beneficial microorganisms and
fermentation metabolites, so that the
nutrition is richer, the quality of the soybean meal is obviously improved, the ability of an animal for digesting and absorbing nutritional substances can be promoted, the immune function of an organ is enhanced, multifunctional soybean meal with high selenium content is prepared, and the nutritional value and the effect of the soybean meal are increased.