| Signs—individuals |
Score |
| Ruffled, untended plumage |
A |
| Non-recurring sticky or soiled cloacal region |
A |
| Mild lameness (weight is still put on the affected limb) |
B |
| Distension of the abdomen |
B |
| Mildly intensified respiration, increased respiratory rate or open-beak breathing |
B |
| Mild/superficial lesion |
B |
| Automutilation and/or loss of feathers |
B |
| Sunken eyes |
B |
| Severe lameness, no weight is put on the affected limb |
C |
| Blood at body orifices, bloody feces |
C |
| Moderately to severely intensified respiration, wheezing, other respiratory sounds |
C |
| Longer lasting sticky or soiled cloacal region (over several observation intervals) |
C |
| Seizures, ataxia, torticollis, opisthotonus |
C |
| Apathy/moderately to severely reduced general condition (animal can no longer be mobilized, eyes stay closed upon approach/touching) |
C |
| Abscesses |
C |
| Visible malformations |
C |
| Lesions with poor prognosis |
C |
| Signs—flock |
Score |
| Feces deviate in amount, colour and texture |
A |
| Reduced or increased feed or water intake |
A |
| Abnormal feces: occurrence of distinctly wet litter |
A |
| Irregular distribution of animals in the pen (clustered in the centre or in the periphery) |
A |
| Divergence in body weight: Occurrence of individuals with less than 50% of the mean body weight of the flock |
B |
| Remarkable vocal expression |
B |
| Cannibalism |
C |
