Testing three measures of mouse insensibility following induction with isoflurane or carbon dioxide gas for a more humane euthanasia

Laboratory mice are commonly killed via exposure to gradually increasing concentrations of isoflurane and carbon dioxide (CO2) gas. Once rendered insensible using isoflurane or CO2, a high concentration of CO2 is used to decrease time to death. When the switch from isoflurane to a high flow rate of CO2 is made, it is important that […]