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Sac c vs disease surveillance report
Clostridial abomasitis causing deaths of calves in south-west Scotland

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  • Abomasitis due to Clostridium sordellii in neonatal calves

  • Unusual ovarian development in an aborted bovine fetus

  • Tilmicosin toxicity in lambs due to overdosing

  • Trueperella pyogenes septicaemia in a commercial boar

  • Perforating gastric ulceration in an adult alpaca

These are among matters discussed in the disease surveillance report for March from SAC Consulting: Veterinary Services (SAC C VS)

AFTER an unsettled start, March proved to be a fine and dry month with record-breaking high temperatures for many areas in Scotland. The mean temperature was 3.1°C above the 1971 to 2000 average and rainfall was well below the normal levels expected for the time of year.

The Scottish Government announced the establishment of a strategic management board following the Kinnaird review into veterinary surveillance. The board will work with the Scottish Government and surveillance providers to ensure that Scotland has a disease surveillance system that is fit for purpose and provides adequate protection. Following the announcement, Richard Lochhead, the rural affairs secretary, said: ‘As the First Minister made clear in Parliament last week, through this board we will consult fully with farmers and vets around Scotland as we consider and take forward the recommendations set out in the Kinnaird report.’

Cattle

Generalised and systemic conditions

Screening for Schmallenberg virus carried out on four sets of bovine fetal or neonatal material in accordance with the SAC/AHVLA testing protocol proved negative.

In utero infection was considered to be the cause of pathology seen in two calves from different farms. St Boswells identified omphalophlebitis and severe vegetative endocarditis affecting the atrioventricular valves and foramen ovale in a four-day-old calf (Fig 1). Due to the chronicity of the heart lesions, SAC C VS considered that the infection most likely began prepartum and would have severely compromised fetal/neonatal circulation. Postmortem examination of a two-day-old calf submitted to Dumfries found consolidation of all …

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