Changes

**In one study, 49% of horses that presented for colic had gastric ulceration and those with duodenitis-proximal jejunitis had a trend towards a higher prevalence of gastric ulceration compared to those with other GI lesions.(Dukti et al. 2006) (Nadeau 2009)

**In one study, 49% of horses that presented for colic had gastric ulceration and those with duodenitis-proximal jejunitis had a trend towards a higher prevalence of gastric ulceration compared to those with other GI lesions.(Dukti et al. 2006) (Nadeau 2009)

*Changes in attitude (dullness or depression)

*Changes in attitude (dullness or depression)

*Poor racing performance and reluctanced to train (Murray 1988, 1992; Murray et al. 1989) (Table 2).(Orsini)

*Poor racing performance and reluctance to train (Murray 1988, 1992; Murray et al. 1989) (Table 2).(Orsini)

**Performance improved in 4 Thoroughbred racehorses after antiulcer treatment(Franklin et al.2008)(Nadeau 2009)

**Performance improved in 4 Thoroughbred racehorses after antiulcer treatment(Franklin et al.2008)(Nadeau 2009)

**Gastric ulcers have adversely affected physiological indices of performance in horses.<ref>Nieto, J.E, Snyder, J.R, Vatistas, N.J, Jones, J.H (2009) Effect of gastric ulceration on physiologic responses to exercise in horses.  ''Am J Vet Res'', 70(6):787-95.</ref>

**Gastric ulcers have adversely affected physiological indices of performance in horses.<ref>Nieto, J.E, Snyder, J.R, Vatistas, N.J, Jones, J.H (2009) Effect of gastric ulceration on physiologic responses to exercise in horses.  ''Am J Vet Res'', 70(6):787-95.</ref>