Related Experiment Video
Updated: Aug 18, 2026

Catheterization of Intestinal Loops in Ruminants
Published on: June 11, 2009
Abstract:
Digestibility and disappearance of energy in the large intestine of sheep fed 75% concentrates was investigated with Cerium-141 as an unabsorbed reference substance. Cecal fermentation increased acetic acid and decreased propionic acid compared with ruminal fermentation. This situation was associated with cellulose disappearance in the lower gut and accounted for 26% of total cellulose disappearance from the entire alimentary tract. Energy disappearance in the hindgut accounted for 13% of energy disappearance in the gastrointestinal tract.
Related Concept Videos
Anatomy of the Intestines
Small Intestines
The small intestine is an ~7 meter-long tube with an inner diameter of just 2.5 cm. Since most nutrients are absorbed here, the inner lining of the small...
Gastric Emptying
Digestive Functions of the Large Intestine
As the chyme moves to the colon, it triggers two characteristic sluggish contractions - haustral churning and mass peristalsis. Haustral churning involves the rhythmic contraction and relaxation...
Feces Formation and Defecation
The mass peristalsis then pushes the feces into the rectum, which stretches the rectal walls to activate...
Physiology of the Gastrointestinal System III: Elimination
Methods for Studying Drug Absorption: In situ
The Doluisio method involves perfusing a prepared segment of a rat's small intestine with a solution of radiolabeled drug and a non-absorbable marker. This helps to differentiate between absorbed and non-absorbed drug concentrations. The intestinal segment is connected at both ends using tubing and syringes,...

