Fig. 9

Borborygmi-frequencies (left) and fecal output (right) during administration of eye drops at high-dose (0.1 mL 1% atropine sulfate solution every three hours), low-dose (0.1 mL 1% atropine sulfate solution every six hours) and control regimens to four horses. A significant decrease in borborygmi-frequency (scored as follows: 1 = intermittent gut sounds and 2 = continuous gut sounds over the auscultation period) was observed during the high-dose regimen compared to control (p = 0.0007), but not when during the low-dose regimen (p = 0.17). There were no significant differences in fecal output between studied protocols (p = 0.72). The graph display the average fecal weight (kg) per day and maximum and minimum range during each protocol