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Influence of Various Grains on the Incidence of Esophagogastric Ulcers in Swine¹

Purdue University, Lafayette, Indiana

Abstract

The effects of barley, corn, milo and wheat in either the raw or expanded form, and the effects of oats or wheat added as either 70% or 30% by weight of the grain on the incidence of esophagogastric ulcers were studied. Esophagogastric ulcers were found to occur in swine fed barley, corn, milo, or wheat. The expansion of the grains increased the incidence of lesions, expressed on the basis of the ulcer index, significantly (P<.01) only in the case of corn or milo. There was no significant difference in severity of the lesions between pigs fed raw or expanded wheat or barley, indicating that expansion per se was not the sole factor influencing ulcer formation.

Oats included in an expanded corn diet as either 70% or 30% by weight of the grain significantly (P<.01) decreased the severity of the lesions observed as noted by the ulcer index. The inclusion of wheat in an expanded com diet as either 70% or 30% by weight of the grain did not significantly reduce the severity of esophagogastric ulcers.

The stomach contents of the pigs with esophagogastric lesions were significantly (P<.01) more fluid than the contents of normal stomachs. The fluidity of the stomach contents was closely associated with the severity of lesions present in the stomach.

¹ Department of Animal Sciences Journal Paper No. 2899, Purdue University Agricultural Experiment Station. A portion of this research was supported by Grant No. AM-07730-03 of the National Institutes of Health, U. S. Department of Health, Education, and Welfare.

² The data are from a thesis submitted by the senior author to the Graduate School, Purdue University, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.

³ Present address: Department of Animal Science, University of New Hampshire, Durham, N. H.

⁴ Department of Veterinary Physiology and Pharmacology. Present address: School of Veterinary Medicine, University of Missouri, Columbia.