Fig. 3

The left colonic motility in healthy donkeys (Equus asinus) after IV administration of isotonic saline or dexmedetomidine at 3, 5, and 7 μg/kg. Each point represents the number of contractions (contraction / 3 minutes) expressed as mean ± standard deviation (SD) at different time points zero, 15, 30, 45, 60, 90, and 120 minutes post-administration. *: Mean ± SD with a superscript asterisk at the same time point are significantly different at P < 0.01