What is the function of the Wean check box and Cause of Death for the pups?
These fields are optional. A check in the Wean box just tells you that the pup was alive and weaned. We recommend using the empty Wean Box and Cause of Death in case you have a Pup that died before weaning and you decide not to create a Mouse ID record for it. In this way, you have an idea of what happened to it.
