PROBLEM TO BE SOLVED: To provide a method for maintaining a stall with an easy management work and minimizing bedding replenishment.SOLUTION: The depth of a stall in a compost barn type cowhouse is made 400 mm or more, useful microorganism material is scattered to the surface of the stall, the surface layer 9a of 100-150 mm depth is crushed with a crushing means, the useful microorganism material is scattered every 20-60 days, the crushing work with the crushing means is done twice a day, and the crushing means comprises a plurality of claw bodies having a cutting part at the tip of an elastic part and a basket-like roller.SELECTED DRAWING: Figure 3COPYRIGHT: (C)2016,JPO&INPIT【課題】牛床を簡単な管理作業で、敷料の補充を最小限に抑え、維持できる方法を提供しようとする。【解決手段】コンポストバーンタイプの牛舎における牛床の深さを400mm以上とし、有用微生物資材を牛床表面に散布した後、表層9aの深さ100~150mmを破砕手段で破砕し、前記有用微生物資材は20~60日に一回散布し、前記破砕手段による破砕作業は一日に二回行い、前記破砕手段は弾性部の先端に刃部を備える複数の爪体とカゴ状のローラで構成される。【選択図】図3