Current consensus and controversies in equine parasite control.

Current approaches to controlling parasites in horses show agreement on some key practices but also reveal ongoing debate regarding the best strategies to prevent drug resistance and effectively manage parasite populations in equines.

Overview of Equine Parasite Control

• Equine parasite control focuses on reducing parasite burden to maintain horse health and performance.
• Common parasites include strongyles, tapeworms, and bots, which can cause various health issues.
• Control generally relies on the use of anthelmintic drugs and pasture management strategies.

Current Consensus in Parasite Control

• Targeted or strategic deworming is preferred over routine, blanket treatments to reduce the risk of anthelmintic resistance.
• Regular fecal egg count (FEC) testing is widely supported to monitor parasite levels and guide treatment decisions.
• Maintaining good pasture hygiene, such as removing feces regularly, is agreed to help reduce parasite contamination.
• Using appropriate dosage based on accurate bodyweight measurement is emphasized to maximize drug efficacy and limit resistance development.

Controversies and Areas of Debate

• The frequency and timing of deworming treatments, especially in different climates and management systems, remain under discussion.
• There is debate over which anthelmintic classes should be used first-line versus reserved for resistant parasite populations.
• The role and effectiveness of non-chemical parasite control methods, such as biological controls or alternative therapies, are still being evaluated.
• Concerns remain about how best to implement integrated parasite management plans that balance control and resistance prevention on a population level.

Implications for Practice

• Equine veterinarians and horse owners are encouraged to adopt evidence-based, individualized parasite control programs.
• Continued research and surveillance are essential to refine guidelines and address emerging resistance challenges.
• Educating stakeholders on responsible anthelmintic use and parasite biology can enhance control efforts and prolong drug effectiveness.