Abstract
SummaryInhibition of gastric acid and increased stomachpH>4.0 is currently accepted as the mainstay of treatment for gastric ulcers in horses. Measurement of gastricpHis complicated and requires placement of a cannula and collection of gastric juice or placement ofpHelectrodes in the stomach. Since the distance from the nares to the stomach is approximately 200 cm, finding a system with apHelectrode with this length is difficult, not to mention difficult to maintain. There has been a fascination with the measurement of gastric juicepHin horses that has covered three‐quarters of a century starting with a fistula model in 1933 and culminating in a recent technique described in this issue. Placement of gastric cannulas and variouspHelectrodes have been used to measure gastric juicepHin horses in the past and present, but the future may require more sophisticated methods as we look at the efficacy of different formulations of acid suppressive drugs for treatment of equine gastric ulcer syndrome.
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