Table 2 Scoring system for experimental necrotic enteritis lesions (slightly modified from[32]) proposed for international adoption
Score | Lesion | Number of lesions |
|---|---|---|
0 | No gross lesions | - |
1 | Thin or friable walls, or diffuse superficial but removable fibrin | - |
2 | Focal necrosis or ulceration, or non-removable fibrin deposit | 1 to 5 foci |
3 | Focal necrosis or ulceration, or non-removable fibrin deposit | 6 to 15 foci |
4 | Focal necrosis or ulceration, or non-removable fibrin deposit | 16 or more foci |
5 | Patches of necrosis 2 to 3 cm long | Variable |
6 | Diffuse necrosis typical of field cases | Variable, but extensive |