Investigations on the function of the rat forestomach.

The functions of the rat forestomach and upper digestive tract were studied. The pH values, alpha-amylase activity, quantitative estimates of microorganisms, and emptying rates were higher in the forestomach than in the glandular stomach. Rats with surgically removed forestomachs lived without complications for more than 1 yr. Their alimentary hyperglycemia was higher and shorter than in controls. The significance of rich microflora present in the conventional forestomach is not known, although in this function between man and ruminants were discussed.