Evaluation of cardiorespiratory and biochemical effects of ketamine-propofol and guaifenesin-ketamine-xylazine anesthesia in donkeys (Equus asinus).

Objectives: To evaluate the cardiorespiratory and biochemical effects of ketamine-propofol (KP) or guaifenesin-ketamine-xylazine (GKX) anesthesia in donkeys.

Study Design: Prospective crossover trial.

Animals: Eight healthy, standard donkeys, aged 10 ± 5 years and weighing 153 ± 23 kg.