Mouse Owner
If a mouse is live:
The owner and project of the mouse are the same as the owner and project of the cage it stays. You can't change the owner and project on a live mouse after you transfer the mouse into a cage.
If a mouse is dead:
The owner and project on the mouse record are automatically updated to the owner and project of the cage when you enter the termination date of the mouse. After the mouse is dead, its owner and project inforamtion are not related to the cage any more and you can now change its owner and project .