Neonatal diarrhea is the main cause of mortality and growth retardation in calves under 1 month old. It represents more than 25% of the reasons for consultation in livestock farming (2). 

The commonality of symptoms makes the differentiation between bacterial, viral or parasitic origin of calves diarrhea not possible, especially as the association between them is frequent. Early identification right from the start of an outbreak is essential to guide therapeutic and prophylactic measures throughout the calving season.

Speed V-Diar identifies the types of germs responsible for diarrhea in calves:

• At individual level : from the very early signs of diarrhea in a calf to adjust the treatment
• At the herd level : From the first cases of diarrhea of ​​the calving season in order to implement sanitary measures and prophylaxis

1.Liquid faeces : With the pipette, put 5 drops of scours into the reagent tube. Semi-solid faeces : With the sampling cap of the reagent tube, take a level spoonful of faeces

2.Close the tube and mix by inverting 10 times.  

3.Open the blue cap of the test and place the reagent tube into it. Screw the blue cap until you hear a “click”, and place it upright on a flat surface.

4.Once the base of the tube has been correctly perforated, the liquid starts migrating vertically by capillarity. Read the result at 15 minutes.

(1) Etude réalisée par des centres de recherche canadiens et des LDV Français ( Rota, Corona, Crypto, K99) et étude interne BVT (CS31A)

(2) ROUSSEAU C. Pathologie du veau. Activéto, 2002,

(3) DEVAUX E. Les dernières données sur les colibacilloses du veau. Dépèche Vétérinaire, 2002, 718