Data for: Mouse aversion to isoflurane anesthesia using the drop method

Latency to enter and the duration spent in the dark (+ isoflurane) chamber was recorded and used to calculate a CPA score based on initial and final preference tests. Our results indicate that using the drop method, to administer isoflurane concentrations between 2.6 and 4.1%, can be used to refine current rodent euthanasia methods.