Table 1.

The Latin Square based schedule used for this and the previous (sedation) study.23

	Session 1	Session 2	Session 3	Session 4	Session 5	Session 6
Horse 1	I	X	B	D	A	H
Horse 2	B	H	X	I	D	A
Horse 3	D	A	I	H	B Cn	X
Horse 4	A	D	H	X	I	B Cn
Horse 5	H	I	A	B	X	D
Horse 6	X	B	D	A	H	I Dc

I, isoflurane; H, halothane; X, xylazine; D, detomidine; A, acepromazine; B, butorphanol. Cn denotes that the study was cancelled and Dc denotes that the horse was deceased, so these studies were not performed. A minimum of 9 days elapsed between studies on any given horse.