Studies on Cecum Digestion

VII. On the Operation for Cecum Fistula in Rabbit, and Excretion of Orally Administrated Cr2O3 to Hard and Soft Feces

Abstract

Two kinds of operation to make fistula into cecum of rabbit were established and described fully in the report.
Test diets containing 1%. Cr2O3 were given 150g per day to the operated animals, and Cr2O3 excreted in hard feces (h. f.) and soft feces (s. f.), occasionally that in the cecal contents, were determined. The results obtained are summarized as follows.
1) In the h. f. more Cr2O3 was contained than in the s. f., both of which were collected for 24 hours. Same results were also shown in the both feces collected at an interval of 8 or 2 hours in a day.
2) In regard to the Cr2O3 content of the h. f. which was much different from the s. f., it was suggested that the different extent of absorption in the large intestine might be responsible for the formation of the h. f. or s. f..
3) Less percentages of Cr2O3 in the cecal contents were shown at night.
4) There were the differences of fecal Cr2O3 content between the feces collected at the various times.