Bacillus coagulans is not included in the list of feed additives of the Ministry of Agriculture, and one unit has applied for patent protection for the use of this strain in feed, which has not yet expired. Bacillus coagulans does not have great advantages when used in feed, and its functions can be replaced by other bacilli (such as Bacillus subtilis and Bacillus licheniformis permitted by the Ministry of Agriculture). This bacterium has medicinal applications.