Clostridium butyricum used for feeding, and application thereof

The invention relates to a clostridium butyricum strain used for feeding, and an application thereof. The provided clostridium butyricum B1 CGMCC No. 4845 is a Gram-positive rod. When observed by using an optical microscope, the sizes of the strains are (0.6-1.2)mum*(3.0-7.0)mum; the ends of the strains are round; the middle parts of the strains are slightly bulged; the strains are single or in couples; the strains are short-chained; filamentous thallus with peritrichous is occurred; the strains are movable; the spores are egg-shaped, and are grew decentrically or on the minor ends; the strains form white or cream-colored small-scaled round colonies on an anaerobic agarose plate; the strains grow under an anaerobic condition, with a growth temperature range of 20 DEG C to 60 DEG C, and preferably 30 DEG C to 42 DEG C; the growth hydrogen power range of the strains is pH 2-10, and preferably pH 7.0. Microbial manure prepared with the strains brings no toxin and harm, and is gastric juice resistant and bile sal