When should a horse be dewormed for optimal parasite control?

Deworming a horse every 60-90 days throughout the year is considered optimal for effective parasite control. This frequency aligns with the life cycles of many equine parasites, which can lead to reinfestation if not managed properly. Regular deworming helps to reduce the overall worm burden in the horse, preventing potential health issues caused by parasites.

Parasites can develop resistance to dewormers if deworming is not done frequently enough or if it is done based solely on visible signs of illness. Waiting for signs of illness can result in a delayed treatment approach, leading to potential complications from a heavier parasite load. Similarly, only deworming at specific times of the year or on a semi-annual basis does not take into account the continuous risk posed by these parasites and may not effectively manage them throughout the year. Therefore, a proactive and consistent deworming schedule is crucial for maintaining equine health and preventing parasite-related problems.