But the treatment could not increase effective degradability of ADL. The effect of Urea treatment was worst in chemical treatment. Y4,Y5 and Y8 treatment improved effective degradability of DM, NDF,ADF,HC,ADL and (a+b) of WMLE.

• 香菇菌糠经Y4、Y5和Y8菌种生物处理后，DM、NDF、ADF、HC及ADL的动态降解率（P）和瘤胃潜在降解部分（a+b）显著提高，其中以Y8菌种处理效果最佳，Y5次之；