Dietary protein and cecal microbial metabolism in the rat.
Adult rats were fed diets containing 0, 25, 50, 100, 200, or 400 g lactalbumin/kg diet for 10 days, and the activities of six cecal microbial enzymes were determined. Total activity per cecum of azoreductase, beta-glucosidase, and urease increased significantly with increasing dietary protein, whereas the activities of beta-glucuronidase and nitroreductase were not significantly affected. Nitrate reductase activity decreased significantly. Total numbers of cecal bacteria were not significantly altered by the treatment.
D000818:Animals; D001419:Bacteria / Q000201:enzymology; D001835:Body Weight / Q000187:drug effects; D002432:Cecum / Q000382:microbiology*; D004032:Diet; D004044:Dietary Proteins / Q000494:pharmacology*; D005260:Female; D051381:Rats
D004044:Dietary Proteins