Table 1.

AFR behaviour in the control horses

	AFR (fpm)	Time (minutes)
Initiation of AF	269 ± 36†	1
0-10th percentile	299 ± 10†	21 ± 4.9
45-55th percentile	313 ± 14	92 ± 22–112 ± 27
90-100th percentile	302 ± 19†	183 ± 44–204 ± 49
Last value prior to termination	288 ± 28†	205 ± 50

AFR (fpm) and time (minutes) described at initiation of AF, the first, middle and last 10% of the AF episodes, and the last value before termination. All values are presented as mean ± SD

^†Differs significantly from the 45-55th percentiles (P < 0.05)