The influence of butorphanol dose on characteristics of xylazine-butorphanol-propofol anesthesia in horses at altitude.

OBJECTIVE To characterize behavioral and physiological responses to short-term, unsupplemented intravenous (IV) anesthesia in healthy horses at high altitude (2240 m), and to test the hypothesis that the dose of butorphanol modifies the response of the horse to propofol anesthesia following xylazine pre-medication. STUDY DESIGN Randomized prospective… CONTINUE READING