These data showed that the optimal fat level and DE con-centration of diet is 3. 4% and 14. 35MJ/kg respectively for Tianjin white weanling piglets.

• 基于上述指标；天津白猪断奶仔猪日粮适宜的油脂添加量为3.；4%25；最适宜的消化能浓度为14