The feed intake of one day of group of CP16%,DEB500mmol/kg was highest,CP16%,DEB-50mmol/kg group was lowest.

• 采食量蛋白质为16%25；DEB为500mmol/kg组最高；蛋白质为16%25；DEB为-50mmol/kg组最低；与其它组差异显著(P<0.；01)。