Equine Deworming Schedule Planner

Most adult horses need deworming two to four times a year. Low shedders usually get treated in spring and fall, while high shedders may need additional summer and winter doses.

A fecal egg count measures parasite eggs in a manure sample. It helps you identify low or high shedding horses and tailor the deworming schedule, reducing drug resistance.

Low shedders have fewer than 200 eggs per gram of manure, while high shedders have 500 or more. High shedders contaminate pastures faster and require more frequent treatment.

Moxidectin and a five-day double dose of fenbendazole are most effective against encysted small strongyles, also called cyathostomes.

Foals are typically dewormed at two to three months of age, then every two to three months during the first year to control roundworms and emerging strongyles.

Rotating blindly is outdated. Use fecal egg counts to choose the correct product and timing. Unnecessary rotation can speed up resistance.

Current research does not show consistent parasite reduction with herbal products. AAEP guidelines still recommend FDA approved anthelmintics for reliable control.

Continued weight loss, dull coat, or colic despite regular treatment can signal resistance. Confirm with a fecal egg count reduction test fourteen days after dosing.

The tool bases timing on age and shedding status, avoiding unnecessary treatments and ensuring you use the right dewormer class at the right interval.