Table 2. Footpad score for broilers (Welfare Quality®, 2009)

Score State Comments
0 No foot pad dermatitis.
1 Condition in which black necrosis and swelling are inconspicuous.
2 Condition in which black necrosis and swelling are conspicuous, and inflammation is less than 25%.
3 Condition in which the sole of the foot is enlarged due to swelling, and black necrosis affects less than 50% of the sole.
4 The same as that of score 3, but black necrosis exceeds 50%.