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Outbreak of clostridial abomasitis in dairy calves
  1. Pedro Melendez and
  2. Scott Poock
  1. Veterinary Medicine & Surgery, University of Missouri, Columbia, MO, USA
  1. Correspondence to Dr Pedro Melendez; melendezp{at}


An outbreak of clostridial abomasitis was diagnosed and described on a Missouri, USA, dairy farm with seasonal parturitions during the fall of 2016. The outbreak comprised 9 fatality cases and 11 clinical cases in calves 4–12 days old. The epidemic event began 10 days after the calving season started. Postmortem examination results reported clostridial abomasitis. Clinical cases were characterised by anorexia, depression, bloat, abdominal distension and yellow-greenish haemorrhagic pre-stomach contents. The outbreak was resolved in a period of 11 days and was handled by consistently reinforcing and monitoring standard operation procedures of the entire calf operation. Factors such as proper methods of milk replacer preparation and delivery, quality and temperature of water, osmolality, hygiene, tool disinfection and stress proved to be critical in controlling the outbreak in the calf operation.

  • clostridial
  • abomasitis
  • dairy calves
  • standard operating procedures
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  • Contributors PM and SP: diagnosis, herd case investigation and writing of the manuscript.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.

  • Data sharing statement The University of Missouri Veterinary Health Center agreed to share the clinical information for this report.

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