Internal Parasites of Horses
- By Heather Smith Thomas
- Jan 06, 2009
There are several major internal parasites (worms) of horses, and control is aimed at reducing their numbers at certain stages in their life cycles. These stages will vary with the seasons, which, in turn, can vary with the geography and climate where you live. A seasonal approach to deworming is always more effective than routine intervals because parasites must return to the environment between successive generations.
Some horses develop natural resistance. While one horse has egg counts that aren’t problematic, another horse in the same pasture, same conditions, same age, may have a tremendous number of worms. Just deworm the wormy individuals. With resistance issues we now face, we should stop treating horses so frequently and only focus on treatments that are absolutely necessary.
- Besnoitiosis in Donkeys (AAEP 2011)
- Strongyle Egg Counts and Race Performance
- Japan's Nuclear Troubles: What is Radiation's Effect on Horses?
- Fenbendazole: Better Treatment for Fighting Resistant Ascarids (AAEP 2010)
- Researchers: Flexion Tests Target Fetlock Joint
- Horse Owners Advised to Prepare for Hurricane Earl
- Fungus Battles Equine Internal Parasites 'the Natural Way'
- Tapeworm-Colic Link Discovered
- Fungus Might Help Control Strongyles Environmentally
- Planning Out Deworming Practices