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Interdigital dermatitis in cattle is caused by the anaerobic bacterium ''Dichelobacter nodosus''. This is also the agent of footrot in sheep, but strains appear to be different and there is no cross-infection. Interdigital dermatitis is different from footrot in cattle and both conditions may occur concurrently. The condition most commonly occurs in farms with a high stocking density or where cattle traffic is high and is most prevalent in Winter. ==Clinical signs and diagnosis== Interdigital dermatitis appears as an infections of the skin between the claws and is usually very mild. There may be fluid or a scab in that area, and there is rarely lameness. There is then progression to the heels which become raw and cattle will experience pain. Chronic cases will show changes of the hoof including hyperplasia of the interdigital tissues and muscle atrophy in the affected limb. The horn may become underrun.〔(Interdigital Dermatitis - Cattle ) reviewed and published by WikiVet, accessed 11 October 2011.〕 Diagnosis is principally based on history and clinical signs. It is very rare that attempts are made to isolate the bacteria.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Interdigital dermatitis in cattle」の詳細全文を読む スポンサード リンク
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