Anti-adversity ferrous ion-rich bacillus coagulans and application thereof

The invention provides stress-resistant bacillus coagulans rich in ferrous ions. The preservation number of the provided iron-rich bacillus coagulans strain is CGMCC (China General Microbiological Culture Collection Center) No.24223. The invention further provides a preparation method of the stress-resistant bacillus coagulans rich in ferrous ions. The invention provides a strain with high iron tolerance. The domesticated bacteria can tolerate high-concentration Fe < 2 + > ions, reduce the oxidation resistance of Fe < 2 + >, can stably grow, have obvious high temperature resistance and acid resistance, and meet the high temperature resistance requirement in livestock and poultry pellet feed processing. The obtained strain has the dual effects of supplementing iron and promoting the feed utilization rate. The strain can convert most of inorganic iron into organic iron, so that the iron supplementing effect of livestock and poultry can be achieved, the growth and development can be improved, the color of meat a