Author:

JM Aller Gancedo, JM Fregenada Grandes & M Fernández Díaz

Date: 4 April 2004

Abstract:

Several outbreaks of sheep mastitis by Aspergillus fumigatusin Castilla y Leà³n(Spain), were studied. Only sheep that were treated intramammarily with antibacterialantibiotics during the dry period suffered this mastitis. Mastitis was acutewith a morbidity up to 14 % and mortality near 100 %. The udder was markedlyenlarged in size, fibrotic, haemorrhagic and with multiple compact nodules, somewith purulent material inside; after 30-50 days postpartum, cheesy abscess ofseveral centimetres in diameter were present. Some sheep had granulomatousnodules in the lung. Microscopy and culture shown the presence of A. fumigatusin milk, udder and lung. The route of infection was by intramammary via as aconsequence of unhygienic intramammary treatment in the dry period.

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