For soybean meal, TMEn value was opt imized when cellulase, pectinnase, mannanase was added with 171U, 2189U, 3778U per kg respectively.

• 对于豆粕TMEn，每kg豆粕添加纤维素酶、果胶酶、甘露聚糖酶分别为171U、2189U、3778U。