Strongyle egg counts in Standardbred trotters: Are they associated with race performance?
Article first published online: 25 JUL 2011
© 2011 EVJ Ltd
Equine Veterinary Journal
Special Issue: Equine Colic. Guest Editors: T.S. Mair and C.J. Proudman. Publication of this supplement was supported by The Horse Trust
Volume 43, Issue Supplement s39, pages 89–92, August 2011
How to Cite
FOG, P., VIGRE, H. and NIELSEN, M. K. (2011), Strongyle egg counts in Standardbred trotters: Are they associated with race performance?. Equine Veterinary Journal, 43: 89–92. doi: 10.1111/j.2042-3306.2011.00381.x
- Issue published online: 25 JUL 2011
- Article first published online: 25 JUL 2011
- [Paper received for publication 13.01.11; Accepted 07.03.11]
- strongyle parasites;
- racing performance;
- Standardbred trotters
Reasons for performing study: Strongyle worm burdens are assumed to subclinically affect equine performance. This assumption appears to be particularly pronounced in the equine racing industry.
Hypothesis: Race results of Standardbred trotters are negatively affected by high strongyle faecal egg count levels.
Methods: Faecal samples were obtained from 213 racing Standardbred trotters, aged ≥2 years, and stabled at training facilities of 21 professional trainers with license at racecourses in Denmark. Strongyle egg counts were generated using a McMaster technique. Race results were recorded as the finishing position of the horse (position 1–3 vs. finishing lower) and winning purse. The effect of strongyle egg counts on performance was assessed using regression analyses.
Results: Strongyle egg counts ranged from 0–3500 with a mean of 319 and a median of 150 eggs/g. Finishing in positions 1–3 was significantly associated with higher egg counts.
Conclusions: Race performance of the population of professionally trained Danish Standardbred trotters was not negatively affected by higher strongyle faecal egg count levels.
Potential relevance: The traditional frequent anthelmintic treatments of racehorses may be inordinate.