Topography of Digestive Enzymes in the Pig Small Intestine at the Early Stages of Ontogeny in the Norm and Pathology

摘要

The distribution of sucrase, maltase, lactase, alkaline phosphatase, amino- and dipeptidases along the small intestine of 1-, 7-, 14- and 30-day-old piglets (normal and hypotrophic) has been investigated. With increasing age, a repression of lactase was observed, as well as induction of sucrase and maltase; the activities of alkaline phosphatase and amino- and dipeptidases decreased and were redistributed along the intestine. In hypotrophic piglets with dyspepsia the significant decrease in activities of lactase, alkaline phosphatase and amino- and dipeptidases and their redistribution along the small intestine were shown. It may be concluded that the dyspepsia resulted in a reduction of the body mass, depending, to a considerable extent, on the enzymatic defects of the small intestine.