Report from FSVO 3R Symposium on alternatives to CO2 in euthanasia published

Carbon dioxide has long been considered one of the better methods for euthanizing laboratory rodents because it is easy to use, inexpensive, and environmentally friendly. Research increasingly has shown that this gas can be aversive to rodents and that it may be inhumane to expose them to this gas while they are conscious. Therefore, the Swiss Federal Food Safety and Veterinary Office (FSVO) has set out to find a more suitable replacement.  In 2018, FSVO organised a meeting with representatives and experts of the different stakeholders involved in this process in order to find a solution. The experts concluded that it is necessary to replace CO2 in euthanasia. The next step will be to draft a research strategy to find the most suitable replacement. Abstract about the meeting: