From: Scoring shoulder ulcers in breeding sows – is a distinction between substantial and insubstantial animal welfare-related lesions possible on clinical examination?
Stage
Criteria
0
No lesion
1
Lesions in epidermis and superficial dermis
2
Lesions in epidermis and entire dermis
3
Lesions in all skin layers
4
Lesions in all skin layers and underlying bone
5
Integrated epidermis with underlying granulation tissue