A NOTE ON THE EFFECT OF POTATO FIBER ON BLOOD-GLUCOSE AND INSULIN-RESPONSE IN PIGS

Six growing pigs fitted with arterial blood cannulas were fed a barley /soybean diet supplemented with 15% wheat fibre (control) or 15% potat o tuber fiber. Blood samples were taken during 3 hours following feedi ng. Postprandial plasma glucose and immunoreactive insulin concentrati ons were lower at all sampling times with the potato fibre diet relati ve to the wheat fibre. The mean and peak plasma concentrations of both glucose and immunoreactive insulin also were significantly (p < 0.05) reduced in the presence of the potato fibre, while the time taken aft er feeding to reach peak values increased.