Abstract
The aim of this study is to evaluate the bispectral index and hemodynamic and respiratory effects of continuous infusion of propofol with or without fentanyl in calves. For such, eight calves with six to 12 months of age, Holstein, weighing 70-120 kg will be used. The animals will be induced to anesthesia with propofol at a dose of 5 mg / kg, intravenously, the control group (GP), or pro…