Abstract
Eleven pigs were fitted with pancreatic and duodenal fistulae, and pancreatic juice
collected permanently. Amylase, chymotrypsin, lipase and total proteins were determined
in juice collected within 2 and 6 hours after different test-meals or intraduodenal
loads of glucose and maltose.
In the pancreatic juice of pigs adapted to a high-lipid diet and submitted to a high-carbohydrate
test-meal the activity of amylase was increased by 50%.
When the consumption of the high-lipid meal was associated with an intraduodenal load
of 100 g of glucose all the enzyme activities were stimulated when compared to the
effect of meal alone, but only the activity of amylase was significantly increased
(+ 82%).
In the juice of pigs adapted to a balanced diet and submitted to intraduodenal loads
of 150 ml of water, 50 g of glucose, 50 g of maltose and 150 g of maltose, the enzyme
activities remained almost constant with the load of water and 50 g of maltose but
with 50 g of glucose and 150 g of maltose loads, amylase activity was increased by
20% and 30% respectively.
It is suggested, that the exocrine pancreas of the pig adapts itself rapidly to the
changes in the size of the intestinal pool of starch hydrolysis products.
Key words
Exocrine Pancreas - Pig - Diet - Intraduodenal Load - Hydrolysis Products
