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Cattle health
Prevention of coccidiosis in dairy cows
  1. Chandra Bhushan1,
  2. Klemens Krieger2 and
  3. Maggie Fisher3
  1. 1Global Veterinary Services Beef & Parasiticides, Bayer Animal Health GmbH Global, Marketing, 51373 Leverkusen, Germany, e-mail:
  2. 2Bayer Animal Health GmbH Global Marketing, Germany
  3. 3Shernacre Enterprise, The Mews Studio, Portland Road, Malvern WR14 1NE

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WE read with interest the paper entitled ‘Efficacy of diclazuril and toltrazuril in the prevention of coccidiosis in dairy cows under field conditions’ by Zechner and others published online in Veterinary Record on November 7, 2014, and further summarised in Veterinary Record of January 31, 2015 (Zechner and others 2015). We wish to draw attention to the paucity of information in both the study design and method, together with inconsistencies in the data and its interpretation. The study was designed so that calves were treated after being moved to the housing commonly …

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