MO is considered a disease of large and giant-breed dogs, being rarely reported in non-large-breed dogs, and has not been reported in the Australian Kelpie, which is considered a medium-breed dog. This case series suggests a previously unreported breed predisposition to MO in the Australian Kelpie.

Background Anecdotal reports suggest a recent high prevalence of aspiration pneumonia in Irish wolfhounds, prompting further investigation into the incidence of the disease in this breed. Objectives To investigate the possibility that Irish wolfhounds have an increased incidence of aspiration pneumonia, and to consider possible predisposing causes in this breed. Methods Retrospective review of medical records from the Small Animal Specialist Hospital, Sydney, from January 2008 to December 2012 inclusive to determine the total hospital incidence and individual breed incidences of aspiration pneumonia. Results The total hospital incidence of aspiration pneumonia was 0 · 5%. The Irish wolfhound had the highest breed incidence, with 9 of 25 dogs (36%) diagnosed with aspiration pneumonia. Four of the Irish wolfhounds had a predisposing cause identified; one having a choking episode, one having gastric bloat, while two were diagnosed with laryngeal paralysis after it was specifically investigated because of clinical suspicion. Five had no underlying cause of their aspiration pneumonia determined. Clinical Significance On the basis of the hospital population studied, the Irish wolfhound has a high incidence of aspiration pneumonia. Further investigation into the possible predisposing cause(s) in this breed is warranted.

Venipuncture can be performed with a 21G, 23G or 25G needle to obtain blood from dogs for automated platelet count and PT/aPTT measurement without affecting the results.