the amount of protein-nitrogen excreted in the feces due to the physiological processes , such as the digestive tract cell turnover , digestive juice secretions , etc , ( 4.2-5.3 mg/mouse/week ) , and the amount that was influenced by the presence of intestinal bacteria and due to bacterial protein per se ( 2.3-4 . 4 mg /mouse/week ) could be estimated through the comparison of the fecal protein values obtained from germ-free and conventional mice reared on the antigen-free liquid diet .
C0004627
bacterial protein
C0033684
protein