153) Holleben, K.v.; Meier, C.; Wenzlawowicz, M.v. (2017): The Gap between Science and Practice – Discrepancies between Lab and Field based Welfare Findings for CAS. UFAW HSA International Symposium: Welfare Impacts of Controlled Atmosphere Methods for Stunning or Killing Animals. June 29-30 2017, Weybridge, Great Britain, abstract; https://www.hsa.org.uk/news-events/welfare-impacts-of-controlled-atmosphere-methods-for-stunning-or-killing-animals