Proximal gastric distension modifies ingestion rate in pigs
Related Experiment Video
Updated: Oct 31, 2026

Fabrication and Implantation of Miniature Dual-element Strain Gages for Measuring In Vivo Gastrointestinal Contractions in Rodents.
Published on: September 18, 2014
L Lepionka1, C H Malbert, J P Laplace
1Equipe des flux digestifs et métabolisme protéique, station de recherches porcines, Inra, Saint-Gilles, France.
Abstract:
Control of food ingestion related to proximal gastric distension has never been demonstrated in pigs. The aim of this study was to demonstrate its existence. Meal duration, food intake rate and characteristics of non-ingestion periods were evaluated during the ingestion of a 500 g meal with simultaneous balloon distension of the proximal stomach. Distensions were performed either at fixed pressure levels or at fixed volume levels. Five pressure levels and five volume levels were tested in duplicate experiments in random order and on different days in each animal. Pressures equal or above 11 mmHg increased meal duration (656 +/- 12 vs 562 +/- 30 s, 11 mmHg vs control) because of a lower rate of food intake and longer period of non-ingestion. On the contrary, irrespective of the gastric bag volume, isovolumic distensions did not alter feeding behaviour. We concluded that a short term control of food intake exists in pigs.
More Related Videos
Related Concept Videos
Gastric Emptying
Intestinal Phase of Digestion
The arrival of the chyme in the small intestine distends the duodenum, which triggers the enterogastric reflex. This distension...
Pyloric Obstruction
Hormonal Regulation
Gastritis II: Pathophysiology
