Lawsonia intracellularis proliferative enteropathy in a 3.5-year-old miniature horse

J. R. Mayer, C. L. Fielding, Nicola Pusterla, K G Magdesian, J. C. Higgins

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


A 3.5-year-old miniature horse gelding was evaluated for signs of colic and decreased faecal production. Initial clinical pathology showed severe hypoproteinaemia with an albumin concentration <10g/l. Abdominal ultrasound identified multiple loops of small intestine with significantly increased wall thickness. Diagnosis of equine proliferative enteropathy was based on clinical and laboratory findings, as well as a positive faecal polymerase chain reaction and positive antibody titre (>1:240) to Lawsonia intracellularis. Treatment with intravenous oxytetracylcine and additional supportive care gradually resolved the clinical and laboratory abnormalities.

Original languageEnglish (US)
Pages (from-to)619-621
Number of pages3
JournalEquine Veterinary Education
Issue number12
StatePublished - Dec 1 2014


  • Enteropathy
  • Horse
  • Hypoproteinaemia
  • Lawsonia
  • Malabsorption
  • Oxytetracycline

ASJC Scopus subject areas

  • Equine


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