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Greasy Pig Disease (Exudative Epidermitis)

See chapter 9 for further information.

(463) Trauma and subsequent infection of the skin by the bacterium Staphylococcus hyicus causes a wet eczema or dermatitis. The lesions often develop to cover the whole of the piglet, the skin becomes flaky and greasy and the body turns a dark brown to black colour. (Fig.10-12).

The generalised form.

These changes often start around the face and ears or along the abdomen. Mortality can be quite high in the generalised form due the absorption of toxins from the organism and from dehydration. A more localised form (Fig.10-13) is seen in pigs from five weeks onwards as small discrete patchy areas of wet inflammation 10-30mm in diameter, often covered over by a black scabs. The organism can also cause eczema of the tail and tips of the ears which leads to vice.

A localised lesion of greasy pig disease. This may be cannibalised.

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