Severity of welfare problems (Jones ym. 1999)

 

     Mild Moderate  Substancial
 Mouse  Body weight  Up to 10 % weight loss     10-20 % weight loss   > 20 % weight loss 
 Rat  Body weight   Up to 10 % weight loss
 
 10-25 % weight loss
 
   >25 % weight loss 
  Feed/water intake
 
 
 40-75 % of normal for 72 h 
  <40-75 % of normal for 72 h      <40 % for 7 days or anorexia > 72 hours 
 Rabbit  Body weight   Up to 10 % weight loss   10-25 % weight loss   >25 % weight loss
 
   Feed/water intake
 
 40-75 % of normal for 72 hours    <40 % of normal for 72 hours or anorexia >48 hours 
 
  <40 % of normal for 7 days or anorexia >72 hours
 

  18.5.2010sm