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Pig Journal Volume: 61
Publication date: June 2008

Case Studies

BIOTIN - A REPORT OF AN INCREASE IN THE PREVALENCE OF A HOOF DEFECT SYNDROME IN SOWS IN IRELAND
P. SPILLANE

Abstract
The author has observed the occurrence of an increased prevalence of hoof defects in sows in Ireland in the last three to four years. The clinical signs of this syndrome are suggestive of the involvement of biotin deficiency, although declared biotin levels in feed are in line with current recommendations. The response to supplementation of the diet with additional biotin is variable. Feed ingredients, processing or storage factors could possibly have influenced the availability of biotin adversely, which could lead to an induced biotin deficiency. Alternatively, the clinical signs observed may be associated with a different aetiology. Leg weakness syndrome, genetic factors, poor conformation or housing factors could be involved, either singly or in combination.

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