Article Text

PDF
Retrospective study of the relationships between age, inflammation and the isolation of bacteria from the lower respiratory tract of thoroughbred horses
  1. R S. Chapman, BVetMed,MRCVS1,
  2. C. Green, BVSc, MRCVS3,
  3. J. P. M. Main, BVM&S,MRCVS3,
  4. P. M. Taylor, BSc, FIBMS3,
  5. F. M. Cunningham, BSc,PhD2,
  6. A. J. C. Cook, BVM&S,MSc, MRCVS1 and
  7. C. M. Marr, BVMS, MVM,PhD, DEIM, MRCVS1
  1. 1 Department of Farm Animal and Equine Medicine and Surgery
  2. 2 Department of Veterinary Basic Sciences, Royal Veterinary College, Hawkshead Lane, North Mymms, Hertfordshire AL9 7TA
  3. 3 Donnington Grove Veterinary Hospital, Oxford Road, Newbury, Berkshire RG13 2JB

Abstract

A total of 1235 tracheal aspirates taken from 724 thoroughbreds in race training, aged from two to 10 years, were examined cytologically and bacteriologically. An inflammation scoring system on a scale of 0 to 9 was devised to allow the severity of lower airway disease to be assessed from the cytological results. The inflammation scores were closely related to the isolation of bacteria (P<0.001), and the most common bacterial isolates were Streptococcus zooepidemicus, Streptococcus pneumoniae and Pasteurella/Actinobacillus-like species. Lower airway disease was less common in older horses (P=0.031), and the groups at highest risk were the two- and four-year-olds. Lower airway inflammation was more common in the four-year-olds at National Hunt yards than in the four-year-olds at flat racing yards (P=0.040, odds ratio=3.80).

    Statistics from Altmetric.com

      Request permissions

      If you wish to reuse any or all of this article please use the link below which will take you to the Copyright Clearance Center’s RightsLink service. You will be able to get a quick price and instant permission to reuse the content in many different ways.