Abstract: The present invention discloses application of a bile acid composite bacterial agent in the preparation of feed additives for mutton sheep. The bile acid composite bacterial agent comprises Parabacteroides distasonis bacterial suspension and bile acid, and the Parabacteroides distasonis bacterial suspension is obtained by cultivation and fermentation of Parabacteroides distasonis LCG-06 with the deposit number CGMCC No. 20820. The bile acid composite bacterial agent of the present invention has natural components and has no toxic and side effects, and can significantly increase the growth rate of mutton sheep and promote nutrition absorption, accelerate the decomposition of in vivo fat of mutton sheep, thereby reducing the body fat percentage of mutton sheep, increasing the slaughter weight and slaughter rate of mutton sheep, increasing the incomes for breeding of mutton sheep. Therefore, it has broad application prospects.

Abstract: The present invention discloses application of a bile acid composite bacterial agent in the preparation of feed additives for mutton sheep. The bile acid composite bacterial agent comprises Parabacteroides distasonis bacterial suspension and bile acid, and the Parabacteroides distasonis bacterial suspension is obtained by cultivation and fermentation of Parabacteroides distasonis LCG-06 with the deposit number CGMCC No. 20820. The bile acid composite bacterial agent of the present invention has natural components and has no toxic and side effects, and can significantly increase the growth rate of mutton sheep and promote nutrition absorption, accelerate the decomposition of in vivo fat of mutton sheep, thereby reducing the body fat percentage of mutton sheep, increasing the slaughter weight and slaughter rate of mutton sheep, increasing the incomes for breeding of mutton sheep. Therefore, it has broad application prospects.