The absorption of magnesium from the forestomachs, stomach and small intestine of sheep.

The passage of magnesium from the mouth to the proximal duodenum and from the proximal duodenum to the terminal ileum was measured continuously in two rams for 24 and 19 days. The results indicate a net disappearance of 25 per cent and 34 per cent of ingested magnesium from the forestomachs and stomach, and no set absorption from the small intestine.