Parasite control practices on Thoroughbred stud farms in New Zealand

In recent years, resistance to deworming products has been described for the major gastrointestinal parasites that affect horses. Therefore, some treatments available to treat parasite burdens in horses may no longer be effective. High parasite burdens may affect the health, performance and welfare of horses. Often, many horses are treated when they don’t need to be or they may not be treated effectively when they do actually need it. Parasite management strategies are important within the racing and breeding industry due to the high value of the horses and the number of horses involved.

This project aims to understand the current parasite control practices within the racing and breeding industry in New Zealand and assess whether resistance to deworming products is present. This study will benefit the breeding and racing industry in New Zealand long term through reduced reliance on deworming products, reduced associated costs, and improved animal welfare and production levels.

Project update

A survey of parasite control practices of horses on breeding farms was conducted using an online survey, in April-June this year. The study identified a high reliance on anthelmintic products and limited on-farm control practices that would delay the development of anthelmintic resistance in equine parasites. Further research is now ongoing to identify the level of resistance on Thoroughbred breeding farms in New Zealand.


Want to know more?

Contact Charlotte Bowell for more information on this project, which is run with Sarah Rosanowski and Ian Scott

Project support

This work is funded by the Equine Trust

Massey Contact Centre Mon - Fri 8:30am to 5:00pm 0800 MASSEY (+64 6 350 5701) TXT 5222 Web chat Staff Alumni News Māori @ Massey