Intestinal secretion in monkeys

Summary

Experiments were carried out on four adult female macaque monkeys from which the anterior portion of the jejunum was isolated by the Thiry method. It was found that the intestinal secretion of monkeys followed the well known general pattern. When the animal was fasting, and when no mechanical stimulation was applied, intestinal juice was secreted periodically. No secretion occurred in response to local mechanical stimulation and it secreted continuously. The amount of secretion was brought about through an increase in the portion. The greater the solid portion the more active were the enzymes. The enzymatic properties of monkey intestinal juice bear a closer resemblance to human than to canine juice.