[Significance of endogenous intestinal nitrogen].

The endogenous nitrogen content in the gut of adult male rats was studied by quantification of total, proteic, noi-proteic, ureic and ammonic nitrogen. The continuous perfusion technique was used maintaining a 20 ml flux of tyrode solution for two hours. The influence of pancreatic and biliar secretions was also studied. The values obtained for these secretions were lower than those found when all the secretions appeared in the lumen, except for ammonic nitrogen. The nitrogen content in pancreas and intestine homogenates were also determined being similar in both cases. This value was higher in pancreas when the ducts were closed.