Norin K E, Gustafsson B E, Midtvedt T
Lab Anim. 1986 Jan;20(1):67-9. doi: 10.1258/002367786781062188.
Regardless of diet (semi-synthetic or lab chow) or strain (AGUS or SD), germ-free rats have tryptic activity in their faeces, whereas conventional rats never do. The activity in faeces from germ-free AGUS rats was significantly higher than from SD rats.
无论饮食(半合成饲料或实验室饲料)或品系(AGUS或SD)如何,无菌大鼠的粪便中都有胰蛋白酶活性,而普通大鼠则从未有过。无菌AGUS大鼠粪便中的活性显著高于SD大鼠。