From the Animal Profile:
Click the Actions button in the top right-hand corner
Select Mark as deceased
A window will appear allowing you to assign a deceased date, reason and any additional comments.
Upon marking an animal as deceased, it cannot be moved to another cage or have any additional measurements recorded.
A notification will appear in the animal profile detailing the time, reason and the name of the user who marked it as deceased.
Note: Samples can still be collected from animals that have been marked as deceased.