Table 2.

Criteria for assessing litter quality (Welfare Quality, 2009), gait score (Kestin et al., 1992), and footpad dermatitis (Ekstrand et al., 1998).

Scores	0	1	2	3	4	5
Litter quality	Completely dry; easily moved and separated	Dry, but not easily shifted	Leaves boot imprint; forms loosely connected ball	Sticks to bottom of boot; forms readily into a ball	Stick to boot once crust is broken	-
Gait score	No abnormality; fluid motion	Slight defect, difficult to define	Identifiable defect not hindering movement	Obvious gait defect hindering acceleration ability and maneuverability	Severe gait defect; only moves when forced to and only for few steps	Complete lameness; unable to support weight
Footpad dermatitis	No lesions, scar, or a mild discoloration of <4 mm2	Minor lesion, discoloration of >4 mm2, superficial lesion or ulcer with epidermal necrosis through to dermis of < 4 mm2	Severe lesion with epidermal necrosis through to dermis of <4 mm2 + other lesions and discoloration or ulcer with epidermal necrosis >4 mm2	-	-	-