Effet de la sécrétion biliaire sur la digestion chez le porc

Abstract

The apparent digestibility of a diet was studied either after ligature of the bile duct or after discontinuous removal of bile secretion in the growing pig. Feces and urine were collected during a 10-day period in bile duct-ligated pigs, and over three 5-day periods in bile-fistulated pigs. The latter were subjected to three treatments each over the three periods : 1) re-entry of bile into the duodenum ; 2) introduction of a salt mixture (Na : 150 meq/1 ; CI : 120 meq/1 ; HC0 3: 40 meq/1) 3) no re-entry of either bile or the salt mixture. Apparent energy digestibility was mainly affected after ligature of the bile duct (-31.6 p. 100) or after removal of bile from the intestinal lumen (-23 p. 100). This decrease was essentially due to a decrease in the total lipid apparent digestibility (― 53 p. 100 after bile duct ligation and ― 31.7 p. 100 after bile removal). Apparent nitrogen and energy derived from carbohydrates digestibilities were unaffected. In the fistulated pigs the intraduodenal introduction of the salt mixture did not improve decreased apparent digestibilities.