Table 1 Case and score definitions for limb and body lesions in lactating sows

Limb lesions

Wounds

Loss of the outer epidermis resulting in an open wound or a healing wound with a scab

0 = no lesion,

1 = <25%,

2 = 25-50%,

3 = >50% of the size of the nearest joint on the diseased limb.

Calluses

¹Alopecia and hypercalcification of the skin

Bursitis

²Fluid filled sac in the subcutaneous tissue

Capped hock

²Bursa swelling on the point of the hock joint on the hind limb

Body lesions

Old scar

Healed with no blood or scabs evident

0 = no scaring

1 = small scar (<2 cm)

2 = moderate scar (2-3 cm)

3 = large scar (>3 cm)

New lesion

Fresh, open or healing wounds with scabs

0 = no lesion

1 = redness/soreness where the surface of the skin is not broken or a small area of broken skin/scab (<2 cm)

2 = moderate area of broken skin/scab (2-3 cm)

3 = large area of broken skin/scab (>3 cm)