Magnesium absorption from different compartments of the swine large intestine
2000
Milinkovic-Tur, S. | Stojevic, Z. | Gradinski-Vrbanac, B. | Simpraga, M. (University of Zagreb (Croatia). Faculty of Veterinary Medicine)
We studied magnesium absorption in the distal part of the swine intestine as a function of different magnesium concentrations in the contents that may affect its absorption rate. The study was carried out in vitro by using sacs made of surviving mucous membrane of the caecum and proximal colon. According to the presented results, at the lowest magnesium concentration in the contents, its absorption against the concentration gradient is possible from both compartments. The increase of magnesium concentration in the contents to 10 or 20 mmol/L was accompanied a significant increase of its absorption from both compartments. The lowest absorption rate of magnesium was achieved at 5 mmol/L of magnesium in the contents. The epithelium of the caecum was less resistant to low and proximal colon to high magnesium concentration in the content.
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