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A Horse 's Gastrointestinal Tract

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Horses are monogstric animals with a relatively small stomach. From the horse’s mouth to their large intestine, their gastrointestinal tract is similar to that of a human’s. However, past the cecum, a horse’s gastrointestinal tract is more similar to a cow’s [3]. A horse’s gastrointestinal tract can be divided into three segments: foregut, midgut, and hindgut [4]. The foregut consists of the esophagus and stomach. Once food has passed through the stomach, it enters the small intestine (midgut): duodenum, jejunum, and ileum, which join the hindgut, cecum, colon, and rectum, at the ileocecal junction. The small intestine and stomach can almost receive a continuous flow of food [3]. The cecum is a large fermentation vat located on the right side of the animal. Carbohydrates fermented by fibrolytic bacteria produce volatile fatty acids, which account for 60-70% of the their energy. However, in modern management practices, horse owners and equine caretakers do not let horses graze like they naturally should; therefore, they substitute the horse’s diet with grains and fats, which the horse is not designed to properly digest. This unbalanced feeding regimen causes numerous digestive disturbances [3].
Horses are classified as hindgut fermenters, meaning a balance of good and bad bacteria aid in the digestion of foodstuff in the cecum and large intestine [5]. The hindgut is not only a fermentation vat, but it also stimulates the immune responses, protects against pathogens,

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