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There are two different surfaces in a horse’s stomach – the parietal surface and the visceral surface. The parietal surface of the horse’s stomach is convex and directed cranially, dorsally, and towards the left. This surface lies against the diagram and the liver.
The horse’s gastrointestinal tract consists of the mouth, esophagus, stomach, small intestine and the highly developed large intestine composed of the caecum, large colon, small colon and rectum (figure 1).
The horse’s digestive system has two parts: the foregut and the hindgut. The foregut consists of the mouth, esophagus, stomach, and small intestine. Digestion of proteins, fats and hydrolyzable carbohydrates (such as those found in grain) takes place mainly in the foregut.
Horses are non-ruminant, simple-stomached herbivores. They are hindgut fermenters, meaning the large intestine is the main site of fermentation of fibrous feedstuffs. This differs from ruminant animals like cattle, goats, deer, and sheep, which are foregut fermenters with a rumen and multicompartment stomach.
The horse stomach can be divided into two main (mucosa) regions, the (upper) non-glandular region and the (lower) glandular region. The lining of the stomach is divided by a ridge or fold of the mucosa called the margo plicatus.
The horse's stomach makes up 10% of their digestive system, holding 8 to 15 liters (2-4 gallons).This small size matches their natural feeding pattern of eating small amounts often, rather than large meals. As mentioned earlier, wild horses spend 16-18 hours daily grazing, keeping their stomachs partially full.
The horse’s foregut comprises the mouth, esophagus, stomach, and small intestine, which are responsible for the digestion and absorption of most non-fiber nutrients. The horse's digestive tract is designed to process small meals, obtained by eating most of the date, as in a natural grazing situation.
Each part of the horse’s digestive system serves a different purpose, and each area has unique health concerns. Basic Anatomy of the Horse GI Tract. The equine gastrointestinal tract can be divided into two main sections: Foregut – consists of the mouth, esophagus, stomach and small intestine.
We viewed as our first task the creation of a digital yet realistic and visually appealing horse, complete with 3-dimensional representations of what we con-sidered to be the important anatomical structures within the abdominal cavity.
In this article we are going to take a journey through the horse’s digestive system from nose to tail, discussing how each section works and how this links to practical feed management. The mouth and teeth have two main functions; to chew food and to wet food with saliva.