[Collecting methods for pancreatic juice in long-term research in the non-anesthesized dog]

Comparison of various methods of collecting pancreatic juice in long-term experiments shows that there is no ideal procedure. The authors themselves obtained the best results by help of the duodenal cannula according to Tuckermann and Thomas, which is implanted in the duodenum opposite to the duodenal papilla. Using this cannula it is often possible with sufficient skill and patience to cannulate the duodenal papilla from the outside and to gain pancreatic juice from the awake dog in an exact manner. Among the pouch techniques the best is the method according to Herrera.