Deviating condition
More than just a few animals limp or show signs of lameness when moving, or do not put their full weight on the limb.
Measures
Estimate the number of affected animals and, where necessary, consult a vet
Pay particular attention to the peripheral areas
Check the limb(s)
Check the pads of the feet
Check the tendons
Check the joints: warm, red and swollen joints, amongst other things, may indicate inflammation
Inspection of the surroundings: remove sources of injury. Rule out structural elements as the cause of the injuries (including checking the wings for injuries)
Animals showing signs of abnormality must be isolated, the vet must be notified and, if necessary, the affected animals must be anaesthetised and euthanised in accordance with animal welfare standards