Animal welfare and 3R

The welfare of laboratory animals must be checked daily.

  • Furthermore, the welfare has to be ensured and enhanced, when animals are bred, maintained or used in an experiment. 
  • If problems emerge, technicians contact the researcher and check the animals more frequently. 
  • Further actions will be agreed case by case together with the researcher.
  • It is also important to agree, for how long the situation will be monitored and what will be done if there is no improvement. 
  • Further information can be found from the Postoperative care -page

Evaluation of welfare

Humane endpoints


  • > 20 % weight loss
  • remarkable dehydration
  • abnormal appearance, posture or behaviouir, reluctance to move 
  • remarkable signs of pain regardless of medication
    NB.  If animal doesn't eat, drink, defecate or urinate, it is not a useful humane endpoint in rodents, since these criterions are difficult to monitor precisely, especially in group housing
  • Further information can be found e.g. from the following pages: