Abstract
The suitability of the young pig for studies of intestinal transport was investigated by determination of net water, sodium, and potassium absorption, and morphometry in jejunum and ileum. Active net absorption was seen in both jejunum and ileum. There was no difference in absorption between segments and there was a good correlation between water and electrolyte transport. Heart rate, arterial pressure, and absorption were constant with time. Villus height and width were similar to those of human, but crypt depth was greater, and the ratio of villus height to crypt depth less. The mucosa was partially permeable to polyethylene glycol 4000 and this marker is not suitable for studies of transport in young pigs.
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