citation_inspection: 160

A total of 6 hamsters of 132 on Protocol A escaped from the primary enclosures. The hamsters are housed in disposable caging. On May 5, 2022, 3 male hamsters (#5102, #5103, and #5104) on chewed a medium sized hole of a back corner of their cage and escaped within the room they were housed. Hamster #5104 sustained multiple injuries and was euthanized as recommended by the veterinarian and in accordance with protocol requirements. The other hamsters were only euthanized to fulfill protocol requirements for tissue collection. On May 8, 2022, it was discovered that 3 female hamsters (#5063, #5064, and #5065) chewed a hole in their cage and escaped. Two hamsters were found in areas outside of the room in which they are housed. One hamster was found inside the animal room. All animals were in good health. The caging is not of sufficient strength to withstand the natural behavior of hamsters to chew. Hamsters must be housed in primary enclosures made of material that will remain structurally sound. Enhanced husbandry practices must be implemented to ensure the structural integrity of the primary enclosures or alternative caging should be provided to prevent escape and injury. Correct by August 13, 2022. NOTE: An order for non-disposable cages has been placed.