According to digestion physilogical characteristic and feeds of pigs, acid proteases, xylanases and cel-lulases were confirmed as composition of compound enzymes employed to pig feed.

• 根据猪的消化生理特点和饲喂饲料,确定猪用复合酶以酸性蛋白酶、木聚糖酶为主,兼有纤维素酶,并采用单因素搜索试验对培养基组成、培养条件进行优化。