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BVD is practically always a herd problem: Reasons for suspecting BVD- Occurrence of fatal Mucosal Disease (MD) on the farm. MD is characterized by erosions and necrosis of the mucosal tissue of the gastro-intestinal tract and by therapy-resistant diarrhoea.
- Diarrhoea in calves and heifers and respiratory problems in the form of pneumoenteritis.
- Problems with fertility, abortions in all stages of pregnancy and puerperal problems.
- Reduced milk production and poor physical development (poor doers).
- Congenital birth defects after intrauterine BVDV infection, characterized by ataxia caused by hypoplasia of the cerebellum as well as ophistotonus (star gazing position).
Samples- Lactating cows: 1 bulk milk sample of 50 ml. (important: stir the bulk milk before taking the sample).
- Non-lactating animals: one 10 ml EDTA blood sample each (heparin blood is not suitable).
- Calves younger than six months of age: one 10 ml EDTA blood sample each (indication of age is very important).
Important: The animals must be accurately identified on the submission form (ear mark, name, age). Blood samples of calves younger than six months must be clearly identified. The samples (milk and EDTA blood at the same time) must arrive at the lab by Friday morning. The results are generally communicated within a week.
Shipping: Priority mail, milk samples need to be cooled
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Diagnostics 
