The invention relates to a preparation method of a microencapsulated
Enterococcus faecium live bacterium preparation and application of the preparation in breeding. The method employs a technological process of ''
fermentation-
coating-
fermentation''. By adding 2g / L
calcium chloride to a
fermentation medium and conducting
drying at 45DEG C, a microencapsulated
Enterococcus faecium
solid product with good
sphericity and
uniform size can be obtained, and its
viable count can reach 11.57lgCFU / g. Compared with free
Enterococcus faecium
solid products, the microencapsulated
Enterococcus faecium live bacterium preparation has stronger ability to tolerate a high temperature of 80DEG C and a simulated gastrointestinal fluid. After storage for 2 months under a normal temperature condition, the
viable count basically has no change. The microencapsulated
Enterococcus faecium live bacterium preparation has a simple pre-fermentation
coating preparation process, good product appearance, strong
stress resistance, high stability, and high encapsulation efficiency. Being use as a
high activity microecological agent for feeding in actual production, the microencapsulated
Enterococcus faecium live bacterium preparation can inhibit propagation of intestinal
spoilage bacteria and
pathogenic bacteria and intestinal infection, reduce the
diarrhea rate, promote digestive absorption of nutrients, enhance
immunity, improve feed intake and feed conversion rate, as well as lower feed-meat ratio.