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Mature horses appear to develop a certain degree of resistance to this parasite, but it is a concern for younger horses up to about two years old. [4] P. equorum is one of the few parasites where a natural immunity develops in the host. [3] However, when an infection is found in an adult horse, both the worm and egg counts are substantially low ...
For adult horses, frequent rotation of several types of dewormers is no longer recommended, as it can often lead to overtreatment and subsequent drug resistance. Another way of combating drug resistance in adult horses is to deworm less frequently, by performing fecal egg counts on manure and deworming only horses with a high count.
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Drenching Merino hoggets, Walcha, NSW U.S. soldiers treating animals with de-worming medication in Eswatini during VETCAP. Deworming (sometimes known as worming, drenching or dehelmintization) is the giving of an anthelmintic drug (a wormer, dewormer, or drench) to a human or animals to rid them of helminths parasites, such as roundworm, flukes and tapeworm.
Deworming heavily infected horses may cause a severe immune reaction to the dead worms, which can damage the intestinal wall and cause a fatal peritonitis. Veterinarians often treat horses with suspected heavy worm burdens with corticosteroids to reduce the inflammatory response to the dead worms.
Considering how entrenched these worms have become (there are established populations in Texas, Alabama, California, Florida, Georgia, Louisiana, Mississippi, North Carolina, and South Carolina ...
Considering how entrenched these worms have become (there are established populations in Texas, Alabama, California, Florida, Georgia, Louisiana, Mississippi, North Carolina, and South Carolina ...
Steel Grey/Iron Grey: A grey horse with intermingled black and white hairs. This color occurs in a horse born black, or in some cases, dark bay, and slowly lightens as the horse ages. Rose Grey: A grey horse with a reddish or pinkish tinge to its coat. This color occurs in a horse born bay or chestnut and slowly lightens as the horse ages.