April
Perform a Fecal Egg Count (FEC) on all horses.  Catagorize horses as 'worm shedders' based on the results:

• <150 eggs per gram (epg) - low
• 150-500 epg - moderate
• >500 epg - high

Deworm all horses based to FEC results:

• <500 epg - ivermectin
• >500 epg - moxidectin

June - only the horses that received ivermectin in April
If FEC in April was >150 epg, deworm those horses with oxibendazole or pyrantel.

FEC on these horses 10-14 days later to make sure there's no dewormer resistance issues.

July
Deworm all horses with ivermectin/praziquantel

FEC on all horses

September
FEC on horses with >150 epg in July.

• 150-500 epg and a low-moderate egg shedder throughout the year, deworm with oxibendazole or pyrantel
• >500 epg or a high egg shedder throughout the year, deworm with moxidectin

October
FEC on horses with <150 epg in July.

• 150-500 epg and a low-moderate egg shedder throughout the year, deworm with oxibendazole or pyrantel
• >500 epg or a high egg shedder throughout the year, deworm with moxidectin

December
Remove remaining bot eggs from coats and deworm all horses with ivermectin

Within 24 hours of foaling
Deworm mare with ivermectin

1-2 weeks of age
ivermectin

2, 6, 10, 14, and 18 months
pyrantel or benzimidazole

4, 8, 12, 16 and 20 months
ivermectin

July/August
ivermectin/praziquantel

Pregnant Mares
We do not deworm until 90 days gestation